Home / 989,066,974.57-1,364,915,110.76-543,059,226.27

Finding the Fourth Proportional to 989,066,974.57, 1,364,915,110.76 and 543,059,226.27

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Solution

The fourth proportional to 989,066,974.57, 1,364,915,110.76 and 543,059,226.27 is: 749,423,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,066,974.57 : 1,364,915,110.76 = 543,059,226.27 : x
  2. Step 2: Convert to fraction form
    989,066,974.57/1,364,915,110.76 = 543,059,226.27/x
  3. Step 3: Cross multiply
    989,066,974.57x = 1,364,915,110.76 × 543,059,226.27
  4. Step 4: Simplify right side
    989,066,974.57x = 741,229,743,973,556,864
  5. Step 5: Solve for x
    x = 741,229,743,973,556,864/989,066,974.57
  6. Step 6: Final answer
    x = 749,423,206.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.