Home / 18,855,681.90-28,271,947.71-7,327,688.85

Finding the Fourth Proportional to 18,855,681.90, 28,271,947.71 and 7,327,688.85

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Solution

The fourth proportional to 18,855,681.90, 28,271,947.71 and 7,327,688.85 is: 10,987,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855,681.90 : 28,271,947.71 = 7,327,688.85 : x
  2. Step 2: Convert to fraction form
    18,855,681.90/28,271,947.71 = 7,327,688.85/x
  3. Step 3: Cross multiply
    18,855,681.90x = 28,271,947.71 × 7,327,688.85
  4. Step 4: Simplify right side
    18,855,681.90x = 207,168,036,002,350.03
  5. Step 5: Solve for x
    x = 207,168,036,002,350.03/18,855,681.90
  6. Step 6: Final answer
    x = 10,987,034.95

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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.