Home / 13,642,703.40-20,464,055.10-8,186,575.80

Finding the Fourth Proportional to 13,642,703.40, 20,464,055.10 and 8,186,575.80

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Solution

The fourth proportional to 13,642,703.40, 20,464,055.10 and 8,186,575.80 is: 12,279,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,703.40 : 20,464,055.10 = 8,186,575.80 : x
  2. Step 2: Convert to fraction form
    13,642,703.40/20,464,055.10 = 8,186,575.80/x
  3. Step 3: Cross multiply
    13,642,703.40x = 20,464,055.10 × 8,186,575.80
  4. Step 4: Simplify right side
    13,642,703.40x = 167,530,538,251,526.59
  5. Step 5: Solve for x
    x = 167,530,538,251,526.59/13,642,703.40
  6. Step 6: Final answer
    x = 12,279,863.70

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Double scale
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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.