Home / 18,612,658.80-27,918,988.20-12,242,559.60

Finding the Fourth Proportional to 18,612,658.80, 27,918,988.20 and 12,242,559.60

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Solution

The fourth proportional to 18,612,658.80, 27,918,988.20 and 12,242,559.60 is: 18,363,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612,658.80 : 27,918,988.20 = 12,242,559.60 : x
  2. Step 2: Convert to fraction form
    18,612,658.80/27,918,988.20 = 12,242,559.60/x
  3. Step 3: Cross multiply
    18,612,658.80x = 27,918,988.20 × 12,242,559.60
  4. Step 4: Simplify right side
    18,612,658.80x = 341,799,877,010,196.69
  5. Step 5: Solve for x
    x = 341,799,877,010,196.69/18,612,658.80
  6. Step 6: Final answer
    x = 18,363,839.40

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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.