Home / 87,644,556.90-120,927,758.49-56,667,451.50

Finding the Fourth Proportional to 87,644,556.90, 120,927,758.49 and 56,667,451.50

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Solution

The fourth proportional to 87,644,556.90, 120,927,758.49 and 56,667,451.50 is: 78,187,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,644,556.90 : 120,927,758.49 = 56,667,451.50 : x
  2. Step 2: Convert to fraction form
    87,644,556.90/120,927,758.49 = 56,667,451.50/x
  3. Step 3: Cross multiply
    87,644,556.90x = 120,927,758.49 × 56,667,451.50
  4. Step 4: Simplify right side
    87,644,556.90x = 6,852,667,889,235,788
  5. Step 5: Solve for x
    x = 6,852,667,889,235,788/87,644,556.90
  6. Step 6: Final answer
    x = 78,187,033.30

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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.