Home / 12,301,878.10-18,452,817.15-8,270,799.70

Finding the Fourth Proportional to 12,301,878.10, 18,452,817.15 and 8,270,799.70

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Solution

The fourth proportional to 12,301,878.10, 18,452,817.15 and 8,270,799.70 is: 12,406,199.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301,878.10 : 18,452,817.15 = 8,270,799.70 : x
  2. Step 2: Convert to fraction form
    12,301,878.10/18,452,817.15 = 8,270,799.70/x
  3. Step 3: Cross multiply
    12,301,878.10x = 18,452,817.15 × 8,270,799.70
  4. Step 4: Simplify right side
    12,301,878.10x = 152,619,554,548,374.84
  5. Step 5: Solve for x
    x = 152,619,554,548,374.84/12,301,878.10
  6. Step 6: Final answer
    x = 12,406,199.55

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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.