Home / 61,245,787.78-91,886,617.65-18,116,139.68

Finding the Fourth Proportional to 61,245,787.78, 91,886,617.65 and 18,116,139.68

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Solution

The fourth proportional to 61,245,787.78, 91,886,617.65 and 18,116,139.68 is: 27,179,514.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,245,787.78 : 91,886,617.65 = 18,116,139.68 : x
  2. Step 2: Convert to fraction form
    61,245,787.78/91,886,617.65 = 18,116,139.68/x
  3. Step 3: Cross multiply
    61,245,787.78x = 91,886,617.65 × 18,116,139.68
  4. Step 4: Simplify right side
    61,245,787.78x = 1,664,630,799,979,572.50
  5. Step 5: Solve for x
    x = 1,664,630,799,979,572.50/61,245,787.78
  6. Step 6: Final answer
    x = 27,179,514.88

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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.