Home / 85,646,087,776.72-128,454,882,505.96-25,940,554,792.04

Finding the Fourth Proportional to 85,646,087,776.72, 128,454,882,505.96 and 25,940,554,792.04

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Solution

The fourth proportional to 85,646,087,776.72, 128,454,882,505.96 and 25,940,554,792.04 is: 38,906,516,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,646,087,776.72 : 128,454,882,505.96 = 25,940,554,792.04 : x
  2. Step 2: Convert to fraction form
    85,646,087,776.72/128,454,882,505.96 = 25,940,554,792.04/x
  3. Step 3: Cross multiply
    85,646,087,776.72x = 128,454,882,505.96 × 25,940,554,792.04
  4. Step 4: Simplify right side
    85,646,087,776.72x = 3,332,190,917,950,916,001,792
  5. Step 5: Solve for x
    x = 3,332,190,917,950,916,001,792/85,646,087,776.72
  6. Step 6: Final answer
    x = 38,906,516,391.48

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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.