Home / 123,870,005.76-170,951,501.39-68,125,248.21

Finding the Fourth Proportional to 123,870,005.76, 170,951,501.39 and 68,125,248.21

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Solution

The fourth proportional to 123,870,005.76, 170,951,501.39 and 68,125,248.21 is: 94,018,833.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,870,005.76 : 170,951,501.39 = 68,125,248.21 : x
  2. Step 2: Convert to fraction form
    123,870,005.76/170,951,501.39 = 68,125,248.21/x
  3. Step 3: Cross multiply
    123,870,005.76x = 170,951,501.39 × 68,125,248.21
  4. Step 4: Simplify right side
    123,870,005.76x = 11,646,113,464,065,908
  5. Step 5: Solve for x
    x = 11,646,113,464,065,908/123,870,005.76
  6. Step 6: Final answer
    x = 94,018,833.64

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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.