Home / 120,429,821.93-166,196,559.78-68,218,841.93

Finding the Fourth Proportional to 120,429,821.93, 166,196,559.78 and 68,218,841.93

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Solution

The fourth proportional to 120,429,821.93, 166,196,559.78 and 68,218,841.93 is: 94,143,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,429,821.93 : 166,196,559.78 = 68,218,841.93 : x
  2. Step 2: Convert to fraction form
    120,429,821.93/166,196,559.78 = 68,218,841.93/x
  3. Step 3: Cross multiply
    120,429,821.93x = 166,196,559.78 × 68,218,841.93
  4. Step 4: Simplify right side
    120,429,821.93x = 11,337,736,840,110,632
  5. Step 5: Solve for x
    x = 11,337,736,840,110,632/120,429,821.93
  6. Step 6: Final answer
    x = 94,143,930.95

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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.