Home / 28,465,036.95-39,281,769.53-15,412,304.71

Finding the Fourth Proportional to 28,465,036.95, 39,281,769.53 and 15,412,304.71

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Solution

The fourth proportional to 28,465,036.95, 39,281,769.53 and 15,412,304.71 is: 21,268,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465,036.95 : 39,281,769.53 = 15,412,304.71 : x
  2. Step 2: Convert to fraction form
    28,465,036.95/39,281,769.53 = 15,412,304.71/x
  3. Step 3: Cross multiply
    28,465,036.95x = 39,281,769.53 × 15,412,304.71
  4. Step 4: Simplify right side
    28,465,036.95x = 605,422,601,544,353.50
  5. Step 5: Solve for x
    x = 605,422,601,544,353.50/28,465,036.95
  6. Step 6: Final answer
    x = 21,268,990.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.