Home / 91,899,280.80-137,659,964.40-63,177,847.20

Finding the Fourth Proportional to 91,899,280.80, 137,659,964.40 and 63,177,847.20

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Solution

The fourth proportional to 91,899,280.80, 137,659,964.40 and 63,177,847.20 is: 94,636,868.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,899,280.80 : 137,659,964.40 = 63,177,847.20 : x
  2. Step 2: Convert to fraction form
    91,899,280.80/137,659,964.40 = 63,177,847.20/x
  3. Step 3: Cross multiply
    91,899,280.80x = 137,659,964.40 × 63,177,847.20
  4. Step 4: Simplify right side
    91,899,280.80x = 8,697,060,196,420,640
  5. Step 5: Solve for x
    x = 8,697,060,196,420,640/91,899,280.80
  6. Step 6: Final answer
    x = 94,636,868.98

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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.