Home / 1,981,691,686.35-2,973,696,651.98-738,980,680.77

Finding the Fourth Proportional to 1,981,691,686.35, 2,973,696,651.98 and 738,980,680.77

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Solution

The fourth proportional to 1,981,691,686.35, 2,973,696,651.98 and 738,980,680.77 is: 1,108,903,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,691,686.35 : 2,973,696,651.98 = 738,980,680.77 : x
  2. Step 2: Convert to fraction form
    1,981,691,686.35/2,973,696,651.98 = 738,980,680.77/x
  3. Step 3: Cross multiply
    1,981,691,686.35x = 2,973,696,651.98 × 738,980,680.77
  4. Step 4: Simplify right side
    1,981,691,686.35x = 2,197,504,376,279,955,200
  5. Step 5: Solve for x
    x = 2,197,504,376,279,955,200/1,981,691,686.35
  6. Step 6: Final answer
    x = 1,108,903,262.51

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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.