Home / 128,479,101.43-192,695,871.31-58,432,923.10

Finding the Fourth Proportional to 128,479,101.43, 192,695,871.31 and 58,432,923.10

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Solution

The fourth proportional to 128,479,101.43, 192,695,871.31 and 58,432,923.10 is: 87,639,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,479,101.43 : 192,695,871.31 = 58,432,923.10 : x
  2. Step 2: Convert to fraction form
    128,479,101.43/192,695,871.31 = 58,432,923.10/x
  3. Step 3: Cross multiply
    128,479,101.43x = 192,695,871.31 × 58,432,923.10
  4. Step 4: Simplify right side
    128,479,101.43x = 11,259,783,029,652,562
  5. Step 5: Solve for x
    x = 11,259,783,029,652,562/128,479,101.43
  6. Step 6: Final answer
    x = 87,639,023.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.