Home / 128,124,700.74-176,811,144.08-69,386,003.22

Finding the Fourth Proportional to 128,124,700.74, 176,811,144.08 and 69,386,003.22

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Solution

The fourth proportional to 128,124,700.74, 176,811,144.08 and 69,386,003.22 is: 95,752,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,124,700.74 : 176,811,144.08 = 69,386,003.22 : x
  2. Step 2: Convert to fraction form
    128,124,700.74/176,811,144.08 = 69,386,003.22/x
  3. Step 3: Cross multiply
    128,124,700.74x = 176,811,144.08 × 69,386,003.22
  4. Step 4: Simplify right side
    128,124,700.74x = 12,268,218,612,466,764
  5. Step 5: Solve for x
    x = 12,268,218,612,466,764/128,124,700.74
  6. Step 6: Final answer
    x = 95,752,173.79

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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.