Home / 13,209,780.60-19,814,670.90-12,253,186.80

Finding the Fourth Proportional to 13,209,780.60, 19,814,670.90 and 12,253,186.80

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Solution

The fourth proportional to 13,209,780.60, 19,814,670.90 and 12,253,186.80 is: 18,379,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,780.60 : 19,814,670.90 = 12,253,186.80 : x
  2. Step 2: Convert to fraction form
    13,209,780.60/19,814,670.90 = 12,253,186.80/x
  3. Step 3: Cross multiply
    13,209,780.60x = 19,814,670.90 × 12,253,186.80
  4. Step 4: Simplify right side
    13,209,780.60x = 242,792,863,918,224.12
  5. Step 5: Solve for x
    x = 242,792,863,918,224.12/13,209,780.60
  6. Step 6: Final answer
    x = 18,379,780.20

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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.