Home / 18,719,306.10-28,084,207.95-7,941,770.10

Finding the Fourth Proportional to 18,719,306.10, 28,084,207.95 and 7,941,770.10

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Solution

The fourth proportional to 18,719,306.10, 28,084,207.95 and 7,941,770.10 is: 11,914,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719,306.10 : 28,084,207.95 = 7,941,770.10 : x
  2. Step 2: Convert to fraction form
    18,719,306.10/28,084,207.95 = 7,941,770.10/x
  3. Step 3: Cross multiply
    18,719,306.10x = 28,084,207.95 × 7,941,770.10
  4. Step 4: Simplify right side
    18,719,306.10x = 223,038,322,979,492.28
  5. Step 5: Solve for x
    x = 223,038,322,979,492.28/18,719,306.10
  6. Step 6: Final answer
    x = 11,914,881.98

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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.