Home / 143,329,152.32-197,731,856.56-91,090,207.92

Finding the Fourth Proportional to 143,329,152.32, 197,731,856.56 and 91,090,207.92

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Solution

The fourth proportional to 143,329,152.32, 197,731,856.56 and 91,090,207.92 is: 125,664,846.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,329,152.32 : 197,731,856.56 = 91,090,207.92 : x
  2. Step 2: Convert to fraction form
    143,329,152.32/197,731,856.56 = 91,090,207.92/x
  3. Step 3: Cross multiply
    143,329,152.32x = 197,731,856.56 × 91,090,207.92
  4. Step 4: Simplify right side
    143,329,152.32x = 18,011,435,926,458,016
  5. Step 5: Solve for x
    x = 18,011,435,926,458,016/143,329,152.32
  6. Step 6: Final answer
    x = 125,664,846.51

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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.