Home / 124,213,915.17-171,415,867.61-71,286,402.29

Finding the Fourth Proportional to 124,213,915.17, 171,415,867.61 and 71,286,402.29

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Solution

The fourth proportional to 124,213,915.17, 171,415,867.61 and 71,286,402.29 is: 98,375,616.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,213,915.17 : 171,415,867.61 = 71,286,402.29 : x
  2. Step 2: Convert to fraction form
    124,213,915.17/171,415,867.61 = 71,286,402.29/x
  3. Step 3: Cross multiply
    124,213,915.17x = 171,415,867.61 × 71,286,402.29
  4. Step 4: Simplify right side
    124,213,915.17x = 12,219,620,496,656,978
  5. Step 5: Solve for x
    x = 12,219,620,496,656,978/124,213,915.17
  6. Step 6: Final answer
    x = 98,375,616.61

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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.