Home / 87,644,562.15-120,927,765.69-56,667,456.75

Finding the Fourth Proportional to 87,644,562.15, 120,927,765.69 and 56,667,456.75

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Solution

The fourth proportional to 87,644,562.15, 120,927,765.69 and 56,667,456.75 is: 78,187,040.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,644,562.15 : 120,927,765.69 = 56,667,456.75 : x
  2. Step 2: Convert to fraction form
    87,644,562.15/120,927,765.69 = 56,667,456.75/x
  3. Step 3: Cross multiply
    87,644,562.15x = 120,927,765.69 × 56,667,456.75
  4. Step 4: Simplify right side
    87,644,562.15x = 6,852,668,932,112,209
  5. Step 5: Solve for x
    x = 6,852,668,932,112,209/87,644,562.15
  6. Step 6: Final answer
    x = 78,187,040.52

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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.