Home / 155,992,394.40-215,266,867.72-86,376,280.64

Finding the Fourth Proportional to 155,992,394.40, 215,266,867.72 and 86,376,280.64

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Solution

The fourth proportional to 155,992,394.40, 215,266,867.72 and 86,376,280.64 is: 119,197,807.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,992,394.40 : 215,266,867.72 = 86,376,280.64 : x
  2. Step 2: Convert to fraction form
    155,992,394.40/215,266,867.72 = 86,376,280.64/x
  3. Step 3: Cross multiply
    155,992,394.40x = 215,266,867.72 × 86,376,280.64
  4. Step 4: Simplify right side
    155,992,394.40x = 18,593,951,378,676,476
  5. Step 5: Solve for x
    x = 18,593,951,378,676,476/155,992,394.40
  6. Step 6: Final answer
    x = 119,197,807.37

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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.