Home / 485,117,851.20-727,676,776.80-266,683,790.40

Finding the Fourth Proportional to 485,117,851.20, 727,676,776.80 and 266,683,790.40

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Solution

The fourth proportional to 485,117,851.20, 727,676,776.80 and 266,683,790.40 is: 400,025,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,117,851.20 : 727,676,776.80 = 266,683,790.40 : x
  2. Step 2: Convert to fraction form
    485,117,851.20/727,676,776.80 = 266,683,790.40/x
  3. Step 3: Cross multiply
    485,117,851.20x = 727,676,776.80 × 266,683,790.40
  4. Step 4: Simplify right side
    485,117,851.20x = 194,059,601,023,078,784
  5. Step 5: Solve for x
    x = 194,059,601,023,078,784/485,117,851.20
  6. Step 6: Final answer
    x = 400,025,685.60

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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.