Home / 91,908,246.20-137,720,651.70-79,720,532.60

Finding the Fourth Proportional to 91,908,246.20, 137,720,651.70 and 79,720,532.60

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Solution

The fourth proportional to 91,908,246.20, 137,720,651.70 and 79,720,532.60 is: 119,457,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,908,246.20 : 137,720,651.70 = 79,720,532.60 : x
  2. Step 2: Convert to fraction form
    91,908,246.20/137,720,651.70 = 79,720,532.60/x
  3. Step 3: Cross multiply
    91,908,246.20x = 137,720,651.70 × 79,720,532.60
  4. Step 4: Simplify right side
    91,908,246.20x = 10,979,163,703,543,094
  5. Step 5: Solve for x
    x = 10,979,163,703,543,094/91,908,246.20
  6. Step 6: Final answer
    x = 119,457,874.10

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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.