Home / 130,407,837.18-179,966,865.20-71,669,434.92

Finding the Fourth Proportional to 130,407,837.18, 179,966,865.20 and 71,669,434.92

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Solution

The fourth proportional to 130,407,837.18, 179,966,865.20 and 71,669,434.92 is: 98,906,045.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,407,837.18 : 179,966,865.20 = 71,669,434.92 : x
  2. Step 2: Convert to fraction form
    130,407,837.18/179,966,865.20 = 71,669,434.92/x
  3. Step 3: Cross multiply
    130,407,837.18x = 179,966,865.20 × 71,669,434.92
  4. Step 4: Simplify right side
    130,407,837.18x = 12,898,123,533,207,812
  5. Step 5: Solve for x
    x = 12,898,123,533,207,812/130,407,837.18
  6. Step 6: Final answer
    x = 98,906,045.93

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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.