Home / 431,487,007.80-647,230,511.70-293,737,500.60

Finding the Fourth Proportional to 431,487,007.80, 647,230,511.70 and 293,737,500.60

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Solution

The fourth proportional to 431,487,007.80, 647,230,511.70 and 293,737,500.60 is: 440,606,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,487,007.80 : 647,230,511.70 = 293,737,500.60 : x
  2. Step 2: Convert to fraction form
    431,487,007.80/647,230,511.70 = 293,737,500.60/x
  3. Step 3: Cross multiply
    431,487,007.80x = 647,230,511.70 × 293,737,500.60
  4. Step 4: Simplify right side
    431,487,007.80x = 190,115,872,818,817,088
  5. Step 5: Solve for x
    x = 190,115,872,818,817,088/431,487,007.80
  6. Step 6: Final answer
    x = 440,606,250.90

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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.