Home / 402,901,631.80-604,352,447.70-280,457,625.40

Finding the Fourth Proportional to 402,901,631.80, 604,352,447.70 and 280,457,625.40

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Solution

The fourth proportional to 402,901,631.80, 604,352,447.70 and 280,457,625.40 is: 420,686,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,901,631.80 : 604,352,447.70 = 280,457,625.40 : x
  2. Step 2: Convert to fraction form
    402,901,631.80/604,352,447.70 = 280,457,625.40/x
  3. Step 3: Cross multiply
    402,901,631.80x = 604,352,447.70 × 280,457,625.40
  4. Step 4: Simplify right side
    402,901,631.80x = 169,495,252,386,619,680
  5. Step 5: Solve for x
    x = 169,495,252,386,619,680/402,901,631.80
  6. Step 6: Final answer
    x = 420,686,438.10

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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.