Home / 18,721,875.10-28,082,812.65-5,943,379.90

Finding the Fourth Proportional to 18,721,875.10, 28,082,812.65 and 5,943,379.90

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Solution

The fourth proportional to 18,721,875.10, 28,082,812.65 and 5,943,379.90 is: 8,915,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,875.10 : 28,082,812.65 = 5,943,379.90 : x
  2. Step 2: Convert to fraction form
    18,721,875.10/28,082,812.65 = 5,943,379.90/x
  3. Step 3: Cross multiply
    18,721,875.10x = 28,082,812.65 × 5,943,379.90
  4. Step 4: Simplify right side
    18,721,875.10x = 166,906,824,239,475.75
  5. Step 5: Solve for x
    x = 166,906,824,239,475.75/18,721,875.10
  6. Step 6: Final answer
    x = 8,915,069.85

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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.