Home / 155,972,275.52-215,248,464.59-86,357,654.33

Finding the Fourth Proportional to 155,972,275.52, 215,248,464.59 and 86,357,654.33

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Solution

The fourth proportional to 155,972,275.52, 215,248,464.59 and 86,357,654.33 is: 119,177,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,972,275.52 : 215,248,464.59 = 86,357,654.33 : x
  2. Step 2: Convert to fraction form
    155,972,275.52/215,248,464.59 = 86,357,654.33/x
  3. Step 3: Cross multiply
    155,972,275.52x = 215,248,464.59 × 86,357,654.33
  4. Step 4: Simplify right side
    155,972,275.52x = 18,588,352,498,618,436
  5. Step 5: Solve for x
    x = 18,588,352,498,618,436/155,972,275.52
  6. Step 6: Final answer
    x = 119,177,286.07

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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.