Home / 1,276,364,613.20-1,914,546,919.80-664,144,581.20

Finding the Fourth Proportional to 1,276,364,613.20, 1,914,546,919.80 and 664,144,581.20

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Solution

The fourth proportional to 1,276,364,613.20, 1,914,546,919.80 and 664,144,581.20 is: 996,216,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,364,613.20 : 1,914,546,919.80 = 664,144,581.20 : x
  2. Step 2: Convert to fraction form
    1,276,364,613.20/1,914,546,919.80 = 664,144,581.20/x
  3. Step 3: Cross multiply
    1,276,364,613.20x = 1,914,546,919.80 × 664,144,581.20
  4. Step 4: Simplify right side
    1,276,364,613.20x = 1,271,535,962,238,321,152
  5. Step 5: Solve for x
    x = 1,271,535,962,238,321,152/1,276,364,613.20
  6. Step 6: Final answer
    x = 996,216,871.80

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Double scale
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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.