Home / 71,238,405.40-106,857,608.10-67,270,312.60

Finding the Fourth Proportional to 71,238,405.40, 106,857,608.10 and 67,270,312.60

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Solution

The fourth proportional to 71,238,405.40, 106,857,608.10 and 67,270,312.60 is: 100,905,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,238,405.40 : 106,857,608.10 = 67,270,312.60 : x
  2. Step 2: Convert to fraction form
    71,238,405.40/106,857,608.10 = 67,270,312.60/x
  3. Step 3: Cross multiply
    71,238,405.40x = 106,857,608.10 × 67,270,312.60
  4. Step 4: Simplify right side
    71,238,405.40x = 7,188,344,700,575,291
  5. Step 5: Solve for x
    x = 7,188,344,700,575,291/71,238,405.40
  6. Step 6: Final answer
    x = 100,905,468.90

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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.