Home / 138,612,931.02-191,288,110.01-75,887,982.54

Finding the Fourth Proportional to 138,612,931.02, 191,288,110.01 and 75,887,982.54

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Solution

The fourth proportional to 138,612,931.02, 191,288,110.01 and 75,887,982.54 is: 104,726,656.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,612,931.02 : 191,288,110.01 = 75,887,982.54 : x
  2. Step 2: Convert to fraction form
    138,612,931.02/191,288,110.01 = 75,887,982.54/x
  3. Step 3: Cross multiply
    138,612,931.02x = 191,288,110.01 × 75,887,982.54
  4. Step 4: Simplify right side
    138,612,931.02x = 14,516,468,752,169,040
  5. Step 5: Solve for x
    x = 14,516,468,752,169,040/138,612,931.02
  6. Step 6: Final answer
    x = 104,726,656.06

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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.