Home / 290,689,753.76-435,859,003.48-115,839,686.96

Finding the Fourth Proportional to 290,689,753.76, 435,859,003.48 and 115,839,686.96

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Solution

The fourth proportional to 290,689,753.76, 435,859,003.48 and 115,839,686.96 is: 173,689,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,689,753.76 : 435,859,003.48 = 115,839,686.96 : x
  2. Step 2: Convert to fraction form
    290,689,753.76/435,859,003.48 = 115,839,686.96/x
  3. Step 3: Cross multiply
    290,689,753.76x = 435,859,003.48 × 115,839,686.96
  4. Step 4: Simplify right side
    290,689,753.76x = 50,489,770,521,820,752
  5. Step 5: Solve for x
    x = 50,489,770,521,820,752/290,689,753.76
  6. Step 6: Final answer
    x = 173,689,543.13

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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.