Home / 81,673,401.60-122,510,102.40-36,239,788.80

Finding the Fourth Proportional to 81,673,401.60, 122,510,102.40 and 36,239,788.80

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Solution

The fourth proportional to 81,673,401.60, 122,510,102.40 and 36,239,788.80 is: 54,359,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673,401.60 : 122,510,102.40 = 36,239,788.80 : x
  2. Step 2: Convert to fraction form
    81,673,401.60/122,510,102.40 = 36,239,788.80/x
  3. Step 3: Cross multiply
    81,673,401.60x = 122,510,102.40 × 36,239,788.80
  4. Step 4: Simplify right side
    81,673,401.60x = 4,439,740,236,842,373
  5. Step 5: Solve for x
    x = 4,439,740,236,842,373/81,673,401.60
  6. Step 6: Final answer
    x = 54,359,683.20

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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.