Home / 122,491,921.80-169,038,775.08-67,487,777.76

Finding the Fourth Proportional to 122,491,921.80, 169,038,775.08 and 67,487,777.76

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Solution

The fourth proportional to 122,491,921.80, 169,038,775.08 and 67,487,777.76 is: 93,133,090.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,491,921.80 : 169,038,775.08 = 67,487,777.76 : x
  2. Step 2: Convert to fraction form
    122,491,921.80/169,038,775.08 = 67,487,777.76/x
  3. Step 3: Cross multiply
    122,491,921.80x = 169,038,775.08 × 67,487,777.76
  4. Step 4: Simplify right side
    122,491,921.80x = 11,408,051,285,421,668
  5. Step 5: Solve for x
    x = 11,408,051,285,421,668/122,491,921.80
  6. Step 6: Final answer
    x = 93,133,090.88

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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.