Home / 12,423,882.60-18,611,579.91-9,678,575.58

Finding the Fourth Proportional to 12,423,882.60, 18,611,579.91 and 9,678,575.58

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Solution

The fourth proportional to 12,423,882.60, 18,611,579.91 and 9,678,575.58 is: 14,498,976.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423,882.60 : 18,611,579.91 = 9,678,575.58 : x
  2. Step 2: Convert to fraction form
    12,423,882.60/18,611,579.91 = 9,678,575.58/x
  3. Step 3: Cross multiply
    12,423,882.60x = 18,611,579.91 × 9,678,575.58
  4. Step 4: Simplify right side
    12,423,882.60x = 180,133,582,822,144.59
  5. Step 5: Solve for x
    x = 180,133,582,822,144.59/12,423,882.60
  6. Step 6: Final answer
    x = 14,498,976.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.