Home / 83,825,722.80-115,617,141.72-74,018,864.88

Finding the Fourth Proportional to 83,825,722.80, 115,617,141.72 and 74,018,864.88

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Solution

The fourth proportional to 83,825,722.80, 115,617,141.72 and 74,018,864.88 is: 102,090,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,825,722.80 : 115,617,141.72 = 74,018,864.88 : x
  2. Step 2: Convert to fraction form
    83,825,722.80/115,617,141.72 = 74,018,864.88/x
  3. Step 3: Cross multiply
    83,825,722.80x = 115,617,141.72 × 74,018,864.88
  4. Step 4: Simplify right side
    83,825,722.80x = 8,557,849,590,784,490
  5. Step 5: Solve for x
    x = 8,557,849,590,784,490/83,825,722.80
  6. Step 6: Final answer
    x = 102,090,972.85

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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.