Home / 397,467,845.16-596,257,755.10-138,645,318.12

Finding the Fourth Proportional to 397,467,845.16, 596,257,755.10 and 138,645,318.12

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Solution

The fourth proportional to 397,467,845.16, 596,257,755.10 and 138,645,318.12 is: 207,987,506.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,467,845.16 : 596,257,755.10 = 138,645,318.12 : x
  2. Step 2: Convert to fraction form
    397,467,845.16/596,257,755.10 = 138,645,318.12/x
  3. Step 3: Cross multiply
    397,467,845.16x = 596,257,755.10 × 138,645,318.12
  4. Step 4: Simplify right side
    397,467,845.16x = 82,668,346,137,356,560
  5. Step 5: Solve for x
    x = 82,668,346,137,356,560/397,467,845.16
  6. Step 6: Final answer
    x = 207,987,506.77

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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.