Home / 20,533,908.30-30,800,862.45-12,456,005.10

Finding the Fourth Proportional to 20,533,908.30, 30,800,862.45 and 12,456,005.10

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Solution

The fourth proportional to 20,533,908.30, 30,800,862.45 and 12,456,005.10 is: 18,684,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533,908.30 : 30,800,862.45 = 12,456,005.10 : x
  2. Step 2: Convert to fraction form
    20,533,908.30/30,800,862.45 = 12,456,005.10/x
  3. Step 3: Cross multiply
    20,533,908.30x = 30,800,862.45 × 12,456,005.10
  4. Step 4: Simplify right side
    20,533,908.30x = 383,655,699,761,598.50
  5. Step 5: Solve for x
    x = 383,655,699,761,598.50/20,533,908.30
  6. Step 6: Final answer
    x = 18,684,007.65

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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.