Home / 63,720,687.40-87,902,715.18-40,228,339.48

Finding the Fourth Proportional to 63,720,687.40, 87,902,715.18 and 40,228,339.48

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Solution

The fourth proportional to 63,720,687.40, 87,902,715.18 and 40,228,339.48 is: 55,495,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,720,687.40 : 87,902,715.18 = 40,228,339.48 : x
  2. Step 2: Convert to fraction form
    63,720,687.40/87,902,715.18 = 40,228,339.48/x
  3. Step 3: Cross multiply
    63,720,687.40x = 87,902,715.18 × 40,228,339.48
  4. Step 4: Simplify right side
    63,720,687.40x = 3,536,180,267,474,789.50
  5. Step 5: Solve for x
    x = 3,536,180,267,474,789.50/63,720,687.40
  6. Step 6: Final answer
    x = 55,495,011.30

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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.