Home / 81,663,905.60-122,517,509.70-35,586,002.60

Finding the Fourth Proportional to 81,663,905.60, 122,517,509.70 and 35,586,002.60

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Solution

The fourth proportional to 81,663,905.60, 122,517,509.70 and 35,586,002.60 is: 53,388,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,663,905.60 : 122,517,509.70 = 35,586,002.60 : x
  2. Step 2: Convert to fraction form
    81,663,905.60/122,517,509.70 = 35,586,002.60/x
  3. Step 3: Cross multiply
    81,663,905.60x = 122,517,509.70 × 35,586,002.60
  4. Step 4: Simplify right side
    81,663,905.60x = 4,359,908,418,729,725.50
  5. Step 5: Solve for x
    x = 4,359,908,418,729,725.50/81,663,905.60
  6. Step 6: Final answer
    x = 53,388,438.71

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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.