Home / 145,162,405.40-217,743,608.10-99,178,251.80

Finding the Fourth Proportional to 145,162,405.40, 217,743,608.10 and 99,178,251.80

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Solution

The fourth proportional to 145,162,405.40, 217,743,608.10 and 99,178,251.80 is: 148,767,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162,405.40 : 217,743,608.10 = 99,178,251.80 : x
  2. Step 2: Convert to fraction form
    145,162,405.40/217,743,608.10 = 99,178,251.80/x
  3. Step 3: Cross multiply
    145,162,405.40x = 217,743,608.10 × 99,178,251.80
  4. Step 4: Simplify right side
    145,162,405.40x = 21,595,430,391,982,320
  5. Step 5: Solve for x
    x = 21,595,430,391,982,320/145,162,405.40
  6. Step 6: Final answer
    x = 148,767,377.70

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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.