Home / 72,504,285.60-108,756,428.40-43,838,839.20

Finding the Fourth Proportional to 72,504,285.60, 108,756,428.40 and 43,838,839.20

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Solution

The fourth proportional to 72,504,285.60, 108,756,428.40 and 43,838,839.20 is: 65,758,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,504,285.60 : 108,756,428.40 = 43,838,839.20 : x
  2. Step 2: Convert to fraction form
    72,504,285.60/108,756,428.40 = 43,838,839.20/x
  3. Step 3: Cross multiply
    72,504,285.60x = 108,756,428.40 × 43,838,839.20
  4. Step 4: Simplify right side
    72,504,285.60x = 4,767,755,576,593,914
  5. Step 5: Solve for x
    x = 4,767,755,576,593,914/72,504,285.60
  6. Step 6: Final answer
    x = 65,758,258.80

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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.