Home / 54,453,993.10-81,680,989.65-42,124,561.90

Finding the Fourth Proportional to 54,453,993.10, 81,680,989.65 and 42,124,561.90

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Solution

The fourth proportional to 54,453,993.10, 81,680,989.65 and 42,124,561.90 is: 63,186,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453,993.10 : 81,680,989.65 = 42,124,561.90 : x
  2. Step 2: Convert to fraction form
    54,453,993.10/81,680,989.65 = 42,124,561.90/x
  3. Step 3: Cross multiply
    54,453,993.10x = 81,680,989.65 × 42,124,561.90
  4. Step 4: Simplify right side
    54,453,993.10x = 3,440,775,904,564,684.50
  5. Step 5: Solve for x
    x = 3,440,775,904,564,684.50/54,453,993.10
  6. Step 6: Final answer
    x = 63,186,842.85

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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.