Home / 18,838,052.10-28,257,078.15-5,191,172.10

Finding the Fourth Proportional to 18,838,052.10, 28,257,078.15 and 5,191,172.10

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Solution

The fourth proportional to 18,838,052.10, 28,257,078.15 and 5,191,172.10 is: 7,786,758.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838,052.10 : 28,257,078.15 = 5,191,172.10 : x
  2. Step 2: Convert to fraction form
    18,838,052.10/28,257,078.15 = 5,191,172.10/x
  3. Step 3: Cross multiply
    18,838,052.10x = 28,257,078.15 × 5,191,172.10
  4. Step 4: Simplify right side
    18,838,052.10x = 146,687,355,719,799.59
  5. Step 5: Solve for x
    x = 146,687,355,719,799.59/18,838,052.10
  6. Step 6: Final answer
    x = 7,786,758.15

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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.