Home / 128,124,679.73-176,811,115.10-69,385,982.22

Finding the Fourth Proportional to 128,124,679.73, 176,811,115.10 and 69,385,982.22

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Solution

The fourth proportional to 128,124,679.73, 176,811,115.10 and 69,385,982.22 is: 95,752,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,124,679.73 : 176,811,115.10 = 69,385,982.22 : x
  2. Step 2: Convert to fraction form
    128,124,679.73/176,811,115.10 = 69,385,982.22/x
  3. Step 3: Cross multiply
    128,124,679.73x = 176,811,115.10 × 69,385,982.22
  4. Step 4: Simplify right side
    128,124,679.73x = 12,268,212,888,280,044
  5. Step 5: Solve for x
    x = 12,268,212,888,280,044/128,124,679.73
  6. Step 6: Final answer
    x = 95,752,144.82

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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.