Home / 986,115,576.80-1,479,173,365.20-699,461,112.80

Finding the Fourth Proportional to 986,115,576.80, 1,479,173,365.20 and 699,461,112.80

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Solution

The fourth proportional to 986,115,576.80, 1,479,173,365.20 and 699,461,112.80 is: 1,049,191,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,115,576.80 : 1,479,173,365.20 = 699,461,112.80 : x
  2. Step 2: Convert to fraction form
    986,115,576.80/1,479,173,365.20 = 699,461,112.80/x
  3. Step 3: Cross multiply
    986,115,576.80x = 1,479,173,365.20 × 699,461,112.80
  4. Step 4: Simplify right side
    986,115,576.80x = 1,034,624,248,046,912,768
  5. Step 5: Solve for x
    x = 1,034,624,248,046,912,768/986,115,576.80
  6. Step 6: Final answer
    x = 1,049,191,669.20

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Double scale
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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.