Home / 6,986,183,728.40-9,641,778,966.78-3,976,168,301.72

Finding the Fourth Proportional to 6,986,183,728.40, 9,641,778,966.78 and 3,976,168,301.72

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Solution

The fourth proportional to 6,986,183,728.40, 9,641,778,966.78 and 3,976,168,301.72 is: 5,487,593,425.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986,183,728.40 : 9,641,778,966.78 = 3,976,168,301.72 : x
  2. Step 2: Convert to fraction form
    6,986,183,728.40/9,641,778,966.78 = 3,976,168,301.72/x
  3. Step 3: Cross multiply
    6,986,183,728.40x = 9,641,778,966.78 × 3,976,168,301.72
  4. Step 4: Simplify right side
    6,986,183,728.40x = 38,337,335,899,895,644,160
  5. Step 5: Solve for x
    x = 38,337,335,899,895,644,160/6,986,183,728.40
  6. Step 6: Final answer
    x = 5,487,593,425.87

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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.