Home / 123,069,289.14-169,887,912.84-76,682,461.86

Finding the Fourth Proportional to 123,069,289.14, 169,887,912.84 and 76,682,461.86

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Solution

The fourth proportional to 123,069,289.14, 169,887,912.84 and 76,682,461.86 is: 105,854,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,069,289.14 : 169,887,912.84 = 76,682,461.86 : x
  2. Step 2: Convert to fraction form
    123,069,289.14/169,887,912.84 = 76,682,461.86/x
  3. Step 3: Cross multiply
    123,069,289.14x = 169,887,912.84 × 76,682,461.86
  4. Step 4: Simplify right side
    123,069,289.14x = 13,027,423,396,828,304
  5. Step 5: Solve for x
    x = 13,027,423,396,828,304/123,069,289.14
  6. Step 6: Final answer
    x = 105,854,380.80

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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.