Home / 77,760,400.20-116,640,600.30-57,605,008.20

Finding the Fourth Proportional to 77,760,400.20, 116,640,600.30 and 57,605,008.20

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Solution

The fourth proportional to 77,760,400.20, 116,640,600.30 and 57,605,008.20 is: 86,407,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,760,400.20 : 116,640,600.30 = 57,605,008.20 : x
  2. Step 2: Convert to fraction form
    77,760,400.20/116,640,600.30 = 57,605,008.20/x
  3. Step 3: Cross multiply
    77,760,400.20x = 116,640,600.30 × 57,605,008.20
  4. Step 4: Simplify right side
    77,760,400.20x = 6,719,082,736,734,423
  5. Step 5: Solve for x
    x = 6,719,082,736,734,423/77,760,400.20
  6. Step 6: Final answer
    x = 86,407,512.30

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Similar ratio
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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.