Home / 1,245,132,005.10-1,865,682,468.45-784,245,374.70

Finding the Fourth Proportional to 1,245,132,005.10, 1,865,682,468.45 and 784,245,374.70

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Solution

The fourth proportional to 1,245,132,005.10, 1,865,682,468.45 and 784,245,374.70 is: 1,175,098,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,132,005.10 : 1,865,682,468.45 = 784,245,374.70 : x
  2. Step 2: Convert to fraction form
    1,245,132,005.10/1,865,682,468.45 = 784,245,374.70/x
  3. Step 3: Cross multiply
    1,245,132,005.10x = 1,865,682,468.45 × 784,245,374.70
  4. Step 4: Simplify right side
    1,245,132,005.10x = 1,463,152,846,540,791,296
  5. Step 5: Solve for x
    x = 1,463,152,846,540,791,296/1,245,132,005.10
  6. Step 6: Final answer
    x = 1,175,098,576.33

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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.