Home / 1,981,691,366.23-2,973,696,171.97-738,980,360.65

Finding the Fourth Proportional to 1,981,691,366.23, 2,973,696,171.97 and 738,980,360.65

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Solution

The fourth proportional to 1,981,691,366.23, 2,973,696,171.97 and 738,980,360.65 is: 1,108,902,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,691,366.23 : 2,973,696,171.97 = 738,980,360.65 : x
  2. Step 2: Convert to fraction form
    1,981,691,366.23/2,973,696,171.97 = 738,980,360.65/x
  3. Step 3: Cross multiply
    1,981,691,366.23x = 2,973,696,171.97 × 738,980,360.65
  4. Step 4: Simplify right side
    1,981,691,366.23x = 2,197,503,069,612,506,368
  5. Step 5: Solve for x
    x = 2,197,503,069,612,506,368/1,981,691,366.23
  6. Step 6: Final answer
    x = 1,108,902,782.27

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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.