Home / 91,868,886.40-137,803,329.60-64,659,107.20

Finding the Fourth Proportional to 91,868,886.40, 137,803,329.60 and 64,659,107.20

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Solution

The fourth proportional to 91,868,886.40, 137,803,329.60 and 64,659,107.20 is: 96,988,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,868,886.40 : 137,803,329.60 = 64,659,107.20 : x
  2. Step 2: Convert to fraction form
    91,868,886.40/137,803,329.60 = 64,659,107.20/x
  3. Step 3: Cross multiply
    91,868,886.40x = 137,803,329.60 × 64,659,107.20
  4. Step 4: Simplify right side
    91,868,886.40x = 8,910,240,261,123,333
  5. Step 5: Solve for x
    x = 8,910,240,261,123,333/91,868,886.40
  6. Step 6: Final answer
    x = 96,988,660.80

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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.