Home / 28,998,807.78-40,019,381.97-15,947,059.65

Finding the Fourth Proportional to 28,998,807.78, 40,019,381.97 and 15,947,059.65

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Solution

The fourth proportional to 28,998,807.78, 40,019,381.97 and 15,947,059.65 is: 22,007,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998,807.78 : 40,019,381.97 = 15,947,059.65 : x
  2. Step 2: Convert to fraction form
    28,998,807.78/40,019,381.97 = 15,947,059.65/x
  3. Step 3: Cross multiply
    28,998,807.78x = 40,019,381.97 × 15,947,059.65
  4. Step 4: Simplify right side
    28,998,807.78x = 638,191,471,431,724.50
  5. Step 5: Solve for x
    x = 638,191,471,431,724.50/28,998,807.78
  6. Step 6: Final answer
    x = 22,007,507.21

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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.