Home / 129,727,229.31-179,023,559.73-70,989,878.95

Finding the Fourth Proportional to 129,727,229.31, 179,023,559.73 and 70,989,878.95

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Solution

The fourth proportional to 129,727,229.31, 179,023,559.73 and 70,989,878.95 is: 97,966,023.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,727,229.31 : 179,023,559.73 = 70,989,878.95 : x
  2. Step 2: Convert to fraction form
    129,727,229.31/179,023,559.73 = 70,989,878.95/x
  3. Step 3: Cross multiply
    129,727,229.31x = 179,023,559.73 × 70,989,878.95
  4. Step 4: Simplify right side
    129,727,229.31x = 12,708,860,834,430,794
  5. Step 5: Solve for x
    x = 12,708,860,834,430,794/129,727,229.31
  6. Step 6: Final answer
    x = 97,966,023.80

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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.