Home / 381,445,960.12-572,254,231.56-139,108,864.12

Finding the Fourth Proportional to 381,445,960.12, 572,254,231.56 and 139,108,864.12

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Solution

The fourth proportional to 381,445,960.12, 572,254,231.56 and 139,108,864.12 is: 208,694,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,445,960.12 : 572,254,231.56 = 139,108,864.12 : x
  2. Step 2: Convert to fraction form
    381,445,960.12/572,254,231.56 = 139,108,864.12/x
  3. Step 3: Cross multiply
    381,445,960.12x = 572,254,231.56 × 139,108,864.12
  4. Step 4: Simplify right side
    381,445,960.12x = 79,605,636,140,175,056
  5. Step 5: Solve for x
    x = 79,605,636,140,175,056/381,445,960.12
  6. Step 6: Final answer
    x = 208,694,400.95

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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.