Home / 112,420,833.48-155,228,678.28-86,273,936.28

Finding the Fourth Proportional to 112,420,833.48, 155,228,678.28 and 86,273,936.28

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Solution

The fourth proportional to 112,420,833.48, 155,228,678.28 and 86,273,936.28 is: 119,125,509.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,420,833.48 : 155,228,678.28 = 86,273,936.28 : x
  2. Step 2: Convert to fraction form
    112,420,833.48/155,228,678.28 = 86,273,936.28/x
  3. Step 3: Cross multiply
    112,420,833.48x = 155,228,678.28 × 86,273,936.28
  4. Step 4: Simplify right side
    112,420,833.48x = 13,392,189,098,757,340
  5. Step 5: Solve for x
    x = 13,392,189,098,757,340/112,420,833.48
  6. Step 6: Final answer
    x = 119,125,509.78

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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.