Home / 485,601,616.80-728,402,425.20-434,583,280.80

Finding the Fourth Proportional to 485,601,616.80, 728,402,425.20 and 434,583,280.80

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Solution

The fourth proportional to 485,601,616.80, 728,402,425.20 and 434,583,280.80 is: 651,874,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,601,616.80 : 728,402,425.20 = 434,583,280.80 : x
  2. Step 2: Convert to fraction form
    485,601,616.80/728,402,425.20 = 434,583,280.80/x
  3. Step 3: Cross multiply
    485,601,616.80x = 728,402,425.20 × 434,583,280.80
  4. Step 4: Simplify right side
    485,601,616.80x = 316,551,515,686,092,608
  5. Step 5: Solve for x
    x = 316,551,515,686,092,608/485,601,616.80
  6. Step 6: Final answer
    x = 651,874,921.20

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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.