Home / 428,543,999.10-642,815,998.65-224,134,731.90

Finding the Fourth Proportional to 428,543,999.10, 642,815,998.65 and 224,134,731.90

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Solution

The fourth proportional to 428,543,999.10, 642,815,998.65 and 224,134,731.90 is: 336,202,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,543,999.10 : 642,815,998.65 = 224,134,731.90 : x
  2. Step 2: Convert to fraction form
    428,543,999.10/642,815,998.65 = 224,134,731.90/x
  3. Step 3: Cross multiply
    428,543,999.10x = 642,815,998.65 × 224,134,731.90
  4. Step 4: Simplify right side
    428,543,999.10x = 144,077,391,518,448,512
  5. Step 5: Solve for x
    x = 144,077,391,518,448,512/428,543,999.10
  6. Step 6: Final answer
    x = 336,202,097.85

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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.