Home / 1,157,977,660.80-1,736,966,491.20-513,005,116.80

Finding the Fourth Proportional to 1,157,977,660.80, 1,736,966,491.20 and 513,005,116.80

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Solution

The fourth proportional to 1,157,977,660.80, 1,736,966,491.20 and 513,005,116.80 is: 769,507,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,977,660.80 : 1,736,966,491.20 = 513,005,116.80 : x
  2. Step 2: Convert to fraction form
    1,157,977,660.80/1,736,966,491.20 = 513,005,116.80/x
  3. Step 3: Cross multiply
    1,157,977,660.80x = 1,736,966,491.20 × 513,005,116.80
  4. Step 4: Simplify right side
    1,157,977,660.80x = 891,072,697,695,742,208
  5. Step 5: Solve for x
    x = 891,072,697,695,742,208/1,157,977,660.80
  6. Step 6: Final answer
    x = 769,507,675.20

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Half scale
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Double scale
Find fourth proportional to 1,157,977,661.80, 1,736,966,492.70 and 513,005,117.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.