Home / 8,188,128,209.70-12,282,192,314.55-5,430,870,584.10

Finding the Fourth Proportional to 8,188,128,209.70, 12,282,192,314.55 and 5,430,870,584.10

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Solution

The fourth proportional to 8,188,128,209.70, 12,282,192,314.55 and 5,430,870,584.10 is: 8,146,305,876.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188,128,209.70 : 12,282,192,314.55 = 5,430,870,584.10 : x
  2. Step 2: Convert to fraction form
    8,188,128,209.70/12,282,192,314.55 = 5,430,870,584.10/x
  3. Step 3: Cross multiply
    8,188,128,209.70x = 12,282,192,314.55 × 5,430,870,584.10
  4. Step 4: Simplify right side
    8,188,128,209.70x = 66,702,996,949,348,687,872
  5. Step 5: Solve for x
    x = 66,702,996,949,348,687,872/8,188,128,209.70
  6. Step 6: Final answer
    x = 8,146,305,876.15

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1.5x scale

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.