Home / 20,377,665.88-28,121,411.10-11,675,663.80

Finding the Fourth Proportional to 20,377,665.88, 28,121,411.10 and 11,675,663.80

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Solution

The fourth proportional to 20,377,665.88, 28,121,411.10 and 11,675,663.80 is: 16,112,549.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377,665.88 : 28,121,411.10 = 11,675,663.80 : x
  2. Step 2: Convert to fraction form
    20,377,665.88/28,121,411.10 = 11,675,663.80/x
  3. Step 3: Cross multiply
    20,377,665.88x = 28,121,411.10 × 11,675,663.80
  4. Step 4: Simplify right side
    20,377,665.88x = 328,336,141,585,188.19
  5. Step 5: Solve for x
    x = 328,336,141,585,188.19/20,377,665.88
  6. Step 6: Final answer
    x = 16,112,549.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.