Home / 28,374,161.71-42,526,771.55-15,389,521.88

Finding the Fourth Proportional to 28,374,161.71, 42,526,771.55 and 15,389,521.88

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Solution

The fourth proportional to 28,374,161.71, 42,526,771.55 and 15,389,521.88 is: 23,065,586.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374,161.71 : 42,526,771.55 = 15,389,521.88 : x
  2. Step 2: Convert to fraction form
    28,374,161.71/42,526,771.55 = 15,389,521.88/x
  3. Step 3: Cross multiply
    28,374,161.71x = 42,526,771.55 × 15,389,521.88
  4. Step 4: Simplify right side
    28,374,161.71x = 654,466,681,177,539
  5. Step 5: Solve for x
    x = 654,466,681,177,539/28,374,161.71
  6. Step 6: Final answer
    x = 23,065,586.50

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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.