Home / 13,480,003.40-20,220,005.10-8,378,169.80

Finding the Fourth Proportional to 13,480,003.40, 20,220,005.10 and 8,378,169.80

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Solution

The fourth proportional to 13,480,003.40, 20,220,005.10 and 8,378,169.80 is: 12,567,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,003.40 : 20,220,005.10 = 8,378,169.80 : x
  2. Step 2: Convert to fraction form
    13,480,003.40/20,220,005.10 = 8,378,169.80/x
  3. Step 3: Cross multiply
    13,480,003.40x = 20,220,005.10 × 8,378,169.80
  4. Step 4: Simplify right side
    13,480,003.40x = 169,406,636,084,666
  5. Step 5: Solve for x
    x = 169,406,636,084,666/13,480,003.40
  6. Step 6: Final answer
    x = 12,567,254.70

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Similar ratio
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1.5x scale

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.