Home / 1,278,288,045.30-1,917,432,067.95-1,228,123,514.10

Finding the Fourth Proportional to 1,278,288,045.30, 1,917,432,067.95 and 1,228,123,514.10

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Solution

The fourth proportional to 1,278,288,045.30, 1,917,432,067.95 and 1,228,123,514.10 is: 1,842,185,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,288,045.30 : 1,917,432,067.95 = 1,228,123,514.10 : x
  2. Step 2: Convert to fraction form
    1,278,288,045.30/1,917,432,067.95 = 1,228,123,514.10/x
  3. Step 3: Cross multiply
    1,278,288,045.30x = 1,917,432,067.95 × 1,228,123,514.10
  4. Step 4: Simplify right side
    1,278,288,045.30x = 2,354,843,409,338,783,744
  5. Step 5: Solve for x
    x = 2,354,843,409,338,783,744/1,278,288,045.30
  6. Step 6: Final answer
    x = 1,842,185,271.15

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Double scale
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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.