Home / 20,160,641.20-30,240,961.80-7,376,897.20

Finding the Fourth Proportional to 20,160,641.20, 30,240,961.80 and 7,376,897.20

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Solution

The fourth proportional to 20,160,641.20, 30,240,961.80 and 7,376,897.20 is: 11,065,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,641.20 : 30,240,961.80 = 7,376,897.20 : x
  2. Step 2: Convert to fraction form
    20,160,641.20/30,240,961.80 = 7,376,897.20/x
  3. Step 3: Cross multiply
    20,160,641.20x = 30,240,961.80 × 7,376,897.20
  4. Step 4: Simplify right side
    20,160,641.20x = 223,084,466,427,726.97
  5. Step 5: Solve for x
    x = 223,084,466,427,726.97/20,160,641.20
  6. Step 6: Final answer
    x = 11,065,345.80

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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.