Home / 722,636,889.62-997,238,906.21-409,371,103.17

Finding the Fourth Proportional to 722,636,889.62, 997,238,906.21 and 409,371,103.17

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Solution

The fourth proportional to 722,636,889.62, 997,238,906.21 and 409,371,103.17 is: 564,932,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,636,889.62 : 997,238,906.21 = 409,371,103.17 : x
  2. Step 2: Convert to fraction form
    722,636,889.62/997,238,906.21 = 409,371,103.17/x
  3. Step 3: Cross multiply
    722,636,889.62x = 997,238,906.21 × 409,371,103.17
  4. Step 4: Simplify right side
    722,636,889.62x = 408,240,791,160,255,296
  5. Step 5: Solve for x
    x = 408,240,791,160,255,296/722,636,889.62
  6. Step 6: Final answer
    x = 564,932,121.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.