Home / 129,727,499.99-179,023,932.02-70,990,149.61

Finding the Fourth Proportional to 129,727,499.99, 179,023,932.02 and 70,990,149.61

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Solution

The fourth proportional to 129,727,499.99, 179,023,932.02 and 70,990,149.61 is: 97,966,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,727,499.99 : 179,023,932.02 = 70,990,149.61 : x
  2. Step 2: Convert to fraction form
    129,727,499.99/179,023,932.02 = 70,990,149.61/x
  3. Step 3: Cross multiply
    129,727,499.99x = 179,023,932.02 × 70,990,149.61
  4. Step 4: Simplify right side
    129,727,499.99x = 12,708,935,717,600,186
  5. Step 5: Solve for x
    x = 12,708,935,717,600,186/129,727,499.99
  6. Step 6: Final answer
    x = 97,966,396.63

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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.