Home / 221,105,820,169.71-331,691,892,242.23-77,659,565,244.72

Finding the Fourth Proportional to 221,105,820,169.71, 331,691,892,242.23 and 77,659,565,244.72

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Solution

The fourth proportional to 221,105,820,169.71, 331,691,892,242.23 and 77,659,565,244.72 is: 116,500,995,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,105,820,169.71 : 331,691,892,242.23 = 77,659,565,244.72 : x
  2. Step 2: Convert to fraction form
    221,105,820,169.71/331,691,892,242.23 = 77,659,565,244.72/x
  3. Step 3: Cross multiply
    221,105,820,169.71x = 331,691,892,242.23 × 77,659,565,244.72
  4. Step 4: Simplify right side
    221,105,820,169.71x = 25,759,048,146,730,094,690,304
  5. Step 5: Solve for x
    x = 25,759,048,146,730,094,690,304/221,105,820,169.71
  6. Step 6: Final answer
    x = 116,500,995,437.20

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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.