Home / 28,278,876.48-42,359,461.74-17,992,783.68

Finding the Fourth Proportional to 28,278,876.48, 42,359,461.74 and 17,992,783.68

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Solution

The fourth proportional to 28,278,876.48, 42,359,461.74 and 17,992,783.68 is: 26,951,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278,876.48 : 42,359,461.74 = 17,992,783.68 : x
  2. Step 2: Convert to fraction form
    28,278,876.48/42,359,461.74 = 17,992,783.68/x
  3. Step 3: Cross multiply
    28,278,876.48x = 42,359,461.74 × 17,992,783.68
  4. Step 4: Simplify right side
    28,278,876.48x = 762,164,631,889,056.38
  5. Step 5: Solve for x
    x = 762,164,631,889,056.38/28,278,876.48
  6. Step 6: Final answer
    x = 26,951,729.59

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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.