Home / 12,402,456.80-18,603,685.20-8,983,519.70

Finding the Fourth Proportional to 12,402,456.80, 18,603,685.20 and 8,983,519.70

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Solution

The fourth proportional to 12,402,456.80, 18,603,685.20 and 8,983,519.70 is: 13,475,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,456.80 : 18,603,685.20 = 8,983,519.70 : x
  2. Step 2: Convert to fraction form
    12,402,456.80/18,603,685.20 = 8,983,519.70/x
  3. Step 3: Cross multiply
    12,402,456.80x = 18,603,685.20 × 8,983,519.70
  4. Step 4: Simplify right side
    12,402,456.80x = 167,126,572,486,798.41
  5. Step 5: Solve for x
    x = 167,126,572,486,798.41/12,402,456.80
  6. Step 6: Final answer
    x = 13,475,279.55

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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.