Home / 155,972,380.14-215,248,608.90-86,357,759.04

Finding the Fourth Proportional to 155,972,380.14, 215,248,608.90 and 86,357,759.04

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Solution

The fourth proportional to 155,972,380.14, 215,248,608.90 and 86,357,759.04 is: 119,177,430.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,972,380.14 : 215,248,608.90 = 86,357,759.04 : x
  2. Step 2: Convert to fraction form
    155,972,380.14/215,248,608.90 = 86,357,759.04/x
  3. Step 3: Cross multiply
    155,972,380.14x = 215,248,608.90 × 86,357,759.04
  4. Step 4: Simplify right side
    155,972,380.14x = 18,588,387,501,081,400
  5. Step 5: Solve for x
    x = 18,588,387,501,081,400/155,972,380.14
  6. Step 6: Final answer
    x = 119,177,430.55

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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.