Home / 1,027,638,618.12-1,418,142,662.10-557,739,939.24

Finding the Fourth Proportional to 1,027,638,618.12, 1,418,142,662.10 and 557,739,939.24

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Solution

The fourth proportional to 1,027,638,618.12, 1,418,142,662.10 and 557,739,939.24 is: 769,681,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,638,618.12 : 1,418,142,662.10 = 557,739,939.24 : x
  2. Step 2: Convert to fraction form
    1,027,638,618.12/1,418,142,662.10 = 557,739,939.24/x
  3. Step 3: Cross multiply
    1,027,638,618.12x = 1,418,142,662.10 × 557,739,939.24
  4. Step 4: Simplify right side
    1,027,638,618.12x = 790,954,802,193,305,856
  5. Step 5: Solve for x
    x = 790,954,802,193,305,856/1,027,638,618.12
  6. Step 6: Final answer
    x = 769,681,859.21

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Half scale
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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.