Home / 1,981,691,417.12-2,973,696,248.34-738,980,411.54

Finding the Fourth Proportional to 1,981,691,417.12, 2,973,696,248.34 and 738,980,411.54

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Solution

The fourth proportional to 1,981,691,417.12, 2,973,696,248.34 and 738,980,411.54 is: 1,108,902,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,691,417.12 : 2,973,696,248.34 = 738,980,411.54 : x
  2. Step 2: Convert to fraction form
    1,981,691,417.12/2,973,696,248.34 = 738,980,411.54/x
  3. Step 3: Cross multiply
    1,981,691,417.12x = 2,973,696,248.34 × 738,980,411.54
  4. Step 4: Simplify right side
    1,981,691,417.12x = 2,197,503,277,378,378,752
  5. Step 5: Solve for x
    x = 2,197,503,277,378,378,752/1,981,691,417.12
  6. Step 6: Final answer
    x = 1,108,902,858.64

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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.