Home / 144,724,691.64-199,721,322.54-78,645,176.76

Finding the Fourth Proportional to 144,724,691.64, 199,721,322.54 and 78,645,176.76

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Solution

The fourth proportional to 144,724,691.64, 199,721,322.54 and 78,645,176.76 is: 108,531,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,724,691.64 : 199,721,322.54 = 78,645,176.76 : x
  2. Step 2: Convert to fraction form
    144,724,691.64/199,721,322.54 = 78,645,176.76/x
  3. Step 3: Cross multiply
    144,724,691.64x = 199,721,322.54 × 78,645,176.76
  4. Step 4: Simplify right side
    144,724,691.64x = 15,707,118,713,899,272
  5. Step 5: Solve for x
    x = 15,707,118,713,899,272/144,724,691.64
  6. Step 6: Final answer
    x = 108,531,022.15

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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.