Home / 138,240,534.40-207,360,801.60-102,408,726.40

Finding the Fourth Proportional to 138,240,534.40, 207,360,801.60 and 102,408,726.40

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Solution

The fourth proportional to 138,240,534.40, 207,360,801.60 and 102,408,726.40 is: 153,613,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,240,534.40 : 207,360,801.60 = 102,408,726.40 : x
  2. Step 2: Convert to fraction form
    138,240,534.40/207,360,801.60 = 102,408,726.40/x
  3. Step 3: Cross multiply
    138,240,534.40x = 207,360,801.60 × 102,408,726.40
  4. Step 4: Simplify right side
    138,240,534.40x = 21,235,555,597,139,084
  5. Step 5: Solve for x
    x = 21,235,555,597,139,084/138,240,534.40
  6. Step 6: Final answer
    x = 153,613,089.60

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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.