Home / 159,898,836.70-220,661,098.86-86,559,978.70

Finding the Fourth Proportional to 159,898,836.70, 220,661,098.86 and 86,559,978.70

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Solution

The fourth proportional to 159,898,836.70, 220,661,098.86 and 86,559,978.70 is: 119,453,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,898,836.70 : 220,661,098.86 = 86,559,978.70 : x
  2. Step 2: Convert to fraction form
    159,898,836.70/220,661,098.86 = 86,559,978.70/x
  3. Step 3: Cross multiply
    159,898,836.70x = 220,661,098.86 × 86,559,978.70
  4. Step 4: Simplify right side
    159,898,836.70x = 19,100,420,017,240,196
  5. Step 5: Solve for x
    x = 19,100,420,017,240,196/159,898,836.70
  6. Step 6: Final answer
    x = 119,453,151.83

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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.