Home / 155,972,293.77-215,248,489.81-86,357,672.61

Finding the Fourth Proportional to 155,972,293.77, 215,248,489.81 and 86,357,672.61

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Solution

The fourth proportional to 155,972,293.77, 215,248,489.81 and 86,357,672.61 is: 119,177,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,972,293.77 : 215,248,489.81 = 86,357,672.61 : x
  2. Step 2: Convert to fraction form
    155,972,293.77/215,248,489.81 = 86,357,672.61/x
  3. Step 3: Cross multiply
    155,972,293.77x = 215,248,489.81 × 86,357,672.61
  4. Step 4: Simplify right side
    155,972,293.77x = 18,588,358,612,272,020
  5. Step 5: Solve for x
    x = 18,588,358,612,272,020/155,972,293.77
  6. Step 6: Final answer
    x = 119,177,311.32

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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.