Home / 20,496,810.30-30,745,215.45-12,957,200.70

Finding the Fourth Proportional to 20,496,810.30, 30,745,215.45 and 12,957,200.70

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Solution

The fourth proportional to 20,496,810.30, 30,745,215.45 and 12,957,200.70 is: 19,435,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496,810.30 : 30,745,215.45 = 12,957,200.70 : x
  2. Step 2: Convert to fraction form
    20,496,810.30/30,745,215.45 = 12,957,200.70/x
  3. Step 3: Cross multiply
    20,496,810.30x = 30,745,215.45 × 12,957,200.70
  4. Step 4: Simplify right side
    20,496,810.30x = 398,371,927,150,390.81
  5. Step 5: Solve for x
    x = 398,371,927,150,390.81/20,496,810.30
  6. Step 6: Final answer
    x = 19,435,801.05

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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.