Home / 1,979,209,831.78-2,967,375,326.09-929,407,082.61

Finding the Fourth Proportional to 1,979,209,831.78, 2,967,375,326.09 and 929,407,082.61

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Solution

The fourth proportional to 1,979,209,831.78, 2,967,375,326.09 and 929,407,082.61 is: 1,393,434,693.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,209,831.78 : 2,967,375,326.09 = 929,407,082.61 : x
  2. Step 2: Convert to fraction form
    1,979,209,831.78/2,967,375,326.09 = 929,407,082.61/x
  3. Step 3: Cross multiply
    1,979,209,831.78x = 2,967,375,326.09 × 929,407,082.61
  4. Step 4: Simplify right side
    1,979,209,831.78x = 2,757,899,644,836,684,800
  5. Step 5: Solve for x
    x = 2,757,899,644,836,684,800/1,979,209,831.78
  6. Step 6: Final answer
    x = 1,393,434,693.26

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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.