Home / 122,865,945.64-169,553,884.66-67,111,357.12

Finding the Fourth Proportional to 122,865,945.64, 169,553,884.66 and 67,111,357.12

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Solution

The fourth proportional to 122,865,945.64, 169,553,884.66 and 67,111,357.12 is: 92,613,060.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,865,945.64 : 169,553,884.66 = 67,111,357.12 : x
  2. Step 2: Convert to fraction form
    122,865,945.64/169,553,884.66 = 67,111,357.12/x
  3. Step 3: Cross multiply
    122,865,945.64x = 169,553,884.66 × 67,111,357.12
  4. Step 4: Simplify right side
    122,865,945.64x = 11,378,991,304,500,550
  5. Step 5: Solve for x
    x = 11,378,991,304,500,550/122,865,945.64
  6. Step 6: Final answer
    x = 92,613,060.89

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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.