Home / 159,346,118.80-238,635,999.96-90,981,600.40

Finding the Fourth Proportional to 159,346,118.80, 238,635,999.96 and 90,981,600.40

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Solution

The fourth proportional to 159,346,118.80, 238,635,999.96 and 90,981,600.40 is: 136,253,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,346,118.80 : 238,635,999.96 = 90,981,600.40 : x
  2. Step 2: Convert to fraction form
    159,346,118.80/238,635,999.96 = 90,981,600.40/x
  3. Step 3: Cross multiply
    159,346,118.80x = 238,635,999.96 × 90,981,600.40
  4. Step 4: Simplify right side
    159,346,118.80x = 21,711,485,189,415,140
  5. Step 5: Solve for x
    x = 21,711,485,189,415,140/159,346,118.80
  6. Step 6: Final answer
    x = 136,253,617.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.