Home / 7,127,987.32-9,836,562.26-4,031,118.78

Finding the Fourth Proportional to 7,127,987.32, 9,836,562.26 and 4,031,118.78

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Solution

The fourth proportional to 7,127,987.32, 9,836,562.26 and 4,031,118.78 is: 5,562,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127,987.32 : 9,836,562.26 = 4,031,118.78 : x
  2. Step 2: Convert to fraction form
    7,127,987.32/9,836,562.26 = 4,031,118.78/x
  3. Step 3: Cross multiply
    7,127,987.32x = 9,836,562.26 × 4,031,118.78
  4. Step 4: Simplify right side
    7,127,987.32x = 39,652,350,856,925.24
  5. Step 5: Solve for x
    x = 39,652,350,856,925.24/7,127,987.32
  6. Step 6: Final answer
    x = 5,562,909.85

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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.