Home / 28,103,999.30-42,155,998.95-21,726,707.30

Finding the Fourth Proportional to 28,103,999.30, 42,155,998.95 and 21,726,707.30

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Solution

The fourth proportional to 28,103,999.30, 42,155,998.95 and 21,726,707.30 is: 32,590,060.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103,999.30 : 42,155,998.95 = 21,726,707.30 : x
  2. Step 2: Convert to fraction form
    28,103,999.30/42,155,998.95 = 21,726,707.30/x
  3. Step 3: Cross multiply
    28,103,999.30x = 42,155,998.95 × 21,726,707.30
  4. Step 4: Simplify right side
    28,103,999.30x = 915,911,050,125,757.38
  5. Step 5: Solve for x
    x = 915,911,050,125,757.38/28,103,999.30
  6. Step 6: Final answer
    x = 32,590,060.95

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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.