Home / 81,639,910.60-122,291,904.30-41,273,139.40

Finding the Fourth Proportional to 81,639,910.60, 122,291,904.30 and 41,273,139.40

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Solution

The fourth proportional to 81,639,910.60, 122,291,904.30 and 41,273,139.40 is: 61,824,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,639,910.60 : 122,291,904.30 = 41,273,139.40 : x
  2. Step 2: Convert to fraction form
    81,639,910.60/122,291,904.30 = 41,273,139.40/x
  3. Step 3: Cross multiply
    81,639,910.60x = 122,291,904.30 × 41,273,139.40
  4. Step 4: Simplify right side
    81,639,910.60x = 5,047,370,813,665,359
  5. Step 5: Solve for x
    x = 5,047,370,813,665,359/81,639,910.60
  6. Step 6: Final answer
    x = 61,824,795.94

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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.