Home / 81,919,193.28-122,877,948.30-47,353,601.15

Finding the Fourth Proportional to 81,919,193.28, 122,877,948.30 and 47,353,601.15

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Solution

The fourth proportional to 81,919,193.28, 122,877,948.30 and 47,353,601.15 is: 71,029,915.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,919,193.28 : 122,877,948.30 = 47,353,601.15 : x
  2. Step 2: Convert to fraction form
    81,919,193.28/122,877,948.30 = 47,353,601.15/x
  3. Step 3: Cross multiply
    81,919,193.28x = 122,877,948.30 × 47,353,601.15
  4. Step 4: Simplify right side
    81,919,193.28x = 5,818,713,353,928,520
  5. Step 5: Solve for x
    x = 5,818,713,353,928,520/81,919,193.28
  6. Step 6: Final answer
    x = 71,029,915.23

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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.