Home / 12,292,985.80-18,439,478.70-5,200,352.20

Finding the Fourth Proportional to 12,292,985.80, 18,439,478.70 and 5,200,352.20

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Solution

The fourth proportional to 12,292,985.80, 18,439,478.70 and 5,200,352.20 is: 7,800,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292,985.80 : 18,439,478.70 = 5,200,352.20 : x
  2. Step 2: Convert to fraction form
    12,292,985.80/18,439,478.70 = 5,200,352.20/x
  3. Step 3: Cross multiply
    12,292,985.80x = 18,439,478.70 × 5,200,352.20
  4. Step 4: Simplify right side
    12,292,985.80x = 95,891,783,624,398.14
  5. Step 5: Solve for x
    x = 95,891,783,624,398.14/12,292,985.80
  6. Step 6: Final answer
    x = 7,800,528.30

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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.