Home / 399,845,638.38-599,850,260.19-137,496,116.91

Finding the Fourth Proportional to 399,845,638.38, 599,850,260.19 and 137,496,116.91

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Solution

The fourth proportional to 399,845,638.38, 599,850,260.19 and 137,496,116.91 is: 206,272,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,845,638.38 : 599,850,260.19 = 137,496,116.91 : x
  2. Step 2: Convert to fraction form
    399,845,638.38/599,850,260.19 = 137,496,116.91/x
  3. Step 3: Cross multiply
    399,845,638.38x = 599,850,260.19 × 137,496,116.91
  4. Step 4: Simplify right side
    399,845,638.38x = 82,477,081,503,578,160
  5. Step 5: Solve for x
    x = 82,477,081,503,578,160/399,845,638.38
  6. Step 6: Final answer
    x = 206,272,305.08

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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.