Home / 81,456,009.40-122,151,537.15-26,853,399.10

Finding the Fourth Proportional to 81,456,009.40, 122,151,537.15 and 26,853,399.10

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Solution

The fourth proportional to 81,456,009.40, 122,151,537.15 and 26,853,399.10 is: 40,269,392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,456,009.40 : 122,151,537.15 = 26,853,399.10 : x
  2. Step 2: Convert to fraction form
    81,456,009.40/122,151,537.15 = 26,853,399.10/x
  3. Step 3: Cross multiply
    81,456,009.40x = 122,151,537.15 × 26,853,399.10
  4. Step 4: Simplify right side
    81,456,009.40x = 3,280,183,977,767,427
  5. Step 5: Solve for x
    x = 3,280,183,977,767,427/81,456,009.40
  6. Step 6: Final answer
    x = 40,269,392.06

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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.