Home / 386,244,603.10-579,366,904.65-343,918,279.90

Finding the Fourth Proportional to 386,244,603.10, 579,366,904.65 and 343,918,279.90

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Solution

The fourth proportional to 386,244,603.10, 579,366,904.65 and 343,918,279.90 is: 515,877,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,244,603.10 : 579,366,904.65 = 343,918,279.90 : x
  2. Step 2: Convert to fraction form
    386,244,603.10/579,366,904.65 = 343,918,279.90/x
  3. Step 3: Cross multiply
    386,244,603.10x = 579,366,904.65 × 343,918,279.90
  4. Step 4: Simplify right side
    386,244,603.10x = 199,254,869,278,215,296
  5. Step 5: Solve for x
    x = 199,254,869,278,215,296/386,244,603.10
  6. Step 6: Final answer
    x = 515,877,419.85

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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.