Home / 20,328,253.92-28,053,045.60-11,161,490.40

Finding the Fourth Proportional to 20,328,253.92, 28,053,045.60 and 11,161,490.40

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Solution

The fourth proportional to 20,328,253.92, 28,053,045.60 and 11,161,490.40 is: 15,402,887.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328,253.92 : 28,053,045.60 = 11,161,490.40 : x
  2. Step 2: Convert to fraction form
    20,328,253.92/28,053,045.60 = 11,161,490.40/x
  3. Step 3: Cross multiply
    20,328,253.92x = 28,053,045.60 × 11,161,490.40
  4. Step 4: Simplify right side
    20,328,253.92x = 313,113,799,155,162.25
  5. Step 5: Solve for x
    x = 313,113,799,155,162.25/20,328,253.92
  6. Step 6: Final answer
    x = 15,402,887.06

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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.