Home / 2,415,907,115.78-3,333,899,564.38-1,398,675,439.62

Finding the Fourth Proportional to 2,415,907,115.78, 3,333,899,564.38 and 1,398,675,439.62

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Solution

The fourth proportional to 2,415,907,115.78, 3,333,899,564.38 and 1,398,675,439.62 is: 1,930,141,853.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415,907,115.78 : 3,333,899,564.38 = 1,398,675,439.62 : x
  2. Step 2: Convert to fraction form
    2,415,907,115.78/3,333,899,564.38 = 1,398,675,439.62/x
  3. Step 3: Cross multiply
    2,415,907,115.78x = 3,333,899,564.38 × 1,398,675,439.62
  4. Step 4: Simplify right side
    2,415,907,115.78x = 4,663,043,438,859,521,024
  5. Step 5: Solve for x
    x = 4,663,043,438,859,521,024/2,415,907,115.78
  6. Step 6: Final answer
    x = 1,930,141,853.72

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Double scale
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1.5x scale

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.