Home / 1,638,752,393.40-2,458,128,590.10-1,611,542,614.20

Finding the Fourth Proportional to 1,638,752,393.40, 2,458,128,590.10 and 1,611,542,614.20

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Solution

The fourth proportional to 1,638,752,393.40, 2,458,128,590.10 and 1,611,542,614.20 is: 2,417,313,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,752,393.40 : 2,458,128,590.10 = 1,611,542,614.20 : x
  2. Step 2: Convert to fraction form
    1,638,752,393.40/2,458,128,590.10 = 1,611,542,614.20/x
  3. Step 3: Cross multiply
    1,638,752,393.40x = 2,458,128,590.10 × 1,611,542,614.20
  4. Step 4: Simplify right side
    1,638,752,393.40x = 3,961,378,974,129,513,984
  5. Step 5: Solve for x
    x = 3,961,378,974,129,513,984/1,638,752,393.40
  6. Step 6: Final answer
    x = 2,417,313,921.30

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Double scale
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1.5x scale

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.