Home / 20,206,498.38-30,328,909.86-12,506,852.48

Finding the Fourth Proportional to 20,206,498.38, 30,328,909.86 and 12,506,852.48

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Solution

The fourth proportional to 20,206,498.38, 30,328,909.86 and 12,506,852.48 is: 18,772,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,498.38 : 30,328,909.86 = 12,506,852.48 : x
  2. Step 2: Convert to fraction form
    20,206,498.38/30,328,909.86 = 12,506,852.48/x
  3. Step 3: Cross multiply
    20,206,498.38x = 30,328,909.86 × 12,506,852.48
  4. Step 4: Simplify right side
    20,206,498.38x = 379,319,201,346,592.88
  5. Step 5: Solve for x
    x = 379,319,201,346,592.88/20,206,498.38
  6. Step 6: Final answer
    x = 18,772,139.25

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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.