Home / 1,238,976,042.90-1,858,464,064.35-868,116,830.10

Finding the Fourth Proportional to 1,238,976,042.90, 1,858,464,064.35 and 868,116,830.10

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Solution

The fourth proportional to 1,238,976,042.90, 1,858,464,064.35 and 868,116,830.10 is: 1,302,175,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,976,042.90 : 1,858,464,064.35 = 868,116,830.10 : x
  2. Step 2: Convert to fraction form
    1,238,976,042.90/1,858,464,064.35 = 868,116,830.10/x
  3. Step 3: Cross multiply
    1,238,976,042.90x = 1,858,464,064.35 × 868,116,830.10
  4. Step 4: Simplify right side
    1,238,976,042.90x = 1,613,363,932,398,284,288
  5. Step 5: Solve for x
    x = 1,613,363,932,398,284,288/1,238,976,042.90
  6. Step 6: Final answer
    x = 1,302,175,245.15

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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.