Home / 402,898,456.80-604,347,685.20-280,454,450.40

Finding the Fourth Proportional to 402,898,456.80, 604,347,685.20 and 280,454,450.40

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Solution

The fourth proportional to 402,898,456.80, 604,347,685.20 and 280,454,450.40 is: 420,681,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,898,456.80 : 604,347,685.20 = 280,454,450.40 : x
  2. Step 2: Convert to fraction form
    402,898,456.80/604,347,685.20 = 280,454,450.40/x
  3. Step 3: Cross multiply
    402,898,456.80x = 604,347,685.20 × 280,454,450.40
  4. Step 4: Simplify right side
    402,898,456.80x = 169,491,997,903,278,208
  5. Step 5: Solve for x
    x = 169,491,997,903,278,208/402,898,456.80
  6. Step 6: Final answer
    x = 420,681,675.60

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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.