Home / 81,982,079.60-122,973,119.40-81,982,079.60

Finding the Fourth Proportional to 81,982,079.60, 122,973,119.40 and 81,982,079.60

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Solution

The fourth proportional to 81,982,079.60, 122,973,119.40 and 81,982,079.60 is: 122,973,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,982,079.60 : 122,973,119.40 = 81,982,079.60 : x
  2. Step 2: Convert to fraction form
    81,982,079.60/122,973,119.40 = 81,982,079.60/x
  3. Step 3: Cross multiply
    81,982,079.60x = 122,973,119.40 × 81,982,079.60
  4. Step 4: Simplify right side
    81,982,079.60x = 10,081,592,063,311,104
  5. Step 5: Solve for x
    x = 10,081,592,063,311,104/81,982,079.60
  6. Step 6: Final answer
    x = 122,973,119.40

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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.