Home / 18,718,084.80-28,077,127.20-11,506,233.60

Finding the Fourth Proportional to 18,718,084.80, 28,077,127.20 and 11,506,233.60

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Solution

The fourth proportional to 18,718,084.80, 28,077,127.20 and 11,506,233.60 is: 17,259,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718,084.80 : 28,077,127.20 = 11,506,233.60 : x
  2. Step 2: Convert to fraction form
    18,718,084.80/28,077,127.20 = 11,506,233.60/x
  3. Step 3: Cross multiply
    18,718,084.80x = 28,077,127.20 × 11,506,233.60
  4. Step 4: Simplify right side
    18,718,084.80x = 323,061,984,380,113.88
  5. Step 5: Solve for x
    x = 323,061,984,380,113.88/18,718,084.80
  6. Step 6: Final answer
    x = 17,259,350.40

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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.