Home / 81,420,746.40-122,131,119.60-36,071,114.40

Finding the Fourth Proportional to 81,420,746.40, 122,131,119.60 and 36,071,114.40

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Solution

The fourth proportional to 81,420,746.40, 122,131,119.60 and 36,071,114.40 is: 54,106,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,420,746.40 : 122,131,119.60 = 36,071,114.40 : x
  2. Step 2: Convert to fraction form
    81,420,746.40/122,131,119.60 = 36,071,114.40/x
  3. Step 3: Cross multiply
    81,420,746.40x = 122,131,119.60 × 36,071,114.40
  4. Step 4: Simplify right side
    81,420,746.40x = 4,405,405,586,891,682
  5. Step 5: Solve for x
    x = 4,405,405,586,891,682/81,420,746.40
  6. Step 6: Final answer
    x = 54,106,671.60

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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.