Home / 1,317,928,319.28-1,818,768,865.82-723,207,601.48

Finding the Fourth Proportional to 1,317,928,319.28, 1,818,768,865.82 and 723,207,601.48

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Solution

The fourth proportional to 1,317,928,319.28, 1,818,768,865.82 and 723,207,601.48 is: 998,041,737.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,928,319.28 : 1,818,768,865.82 = 723,207,601.48 : x
  2. Step 2: Convert to fraction form
    1,317,928,319.28/1,818,768,865.82 = 723,207,601.48/x
  3. Step 3: Cross multiply
    1,317,928,319.28x = 1,818,768,865.82 × 723,207,601.48
  4. Step 4: Simplify right side
    1,317,928,319.28x = 1,315,347,469,096,182,016
  5. Step 5: Solve for x
    x = 1,315,347,469,096,182,016/1,317,928,319.28
  6. Step 6: Final answer
    x = 998,041,737.06

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.