Home / 485,041,487.40-727,562,231.10-178,293,742.20

Finding the Fourth Proportional to 485,041,487.40, 727,562,231.10 and 178,293,742.20

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Solution

The fourth proportional to 485,041,487.40, 727,562,231.10 and 178,293,742.20 is: 267,440,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,041,487.40 : 727,562,231.10 = 178,293,742.20 : x
  2. Step 2: Convert to fraction form
    485,041,487.40/727,562,231.10 = 178,293,742.20/x
  3. Step 3: Cross multiply
    485,041,487.40x = 727,562,231.10 × 178,293,742.20
  4. Step 4: Simplify right side
    485,041,487.40x = 129,719,792,866,200,224
  5. Step 5: Solve for x
    x = 129,719,792,866,200,224/485,041,487.40
  6. Step 6: Final answer
    x = 267,440,613.30

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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.