Home / 607,394,825.20-912,545,723.42-389,472,127.12

Finding the Fourth Proportional to 607,394,825.20, 912,545,723.42 and 389,472,127.12

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Solution

The fourth proportional to 607,394,825.20, 912,545,723.42 and 389,472,127.12 is: 585,140,190.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,394,825.20 : 912,545,723.42 = 389,472,127.12 : x
  2. Step 2: Convert to fraction form
    607,394,825.20/912,545,723.42 = 389,472,127.12/x
  3. Step 3: Cross multiply
    607,394,825.20x = 912,545,723.42 × 389,472,127.12
  4. Step 4: Simplify right side
    607,394,825.20x = 355,411,123,994,646,592
  5. Step 5: Solve for x
    x = 355,411,123,994,646,592/607,394,825.20
  6. Step 6: Final answer
    x = 585,140,190.94

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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.