Home / 5,428,997.20-7,490,336.16-3,136,321.36

Finding the Fourth Proportional to 5,428,997.20, 7,490,336.16 and 3,136,321.36

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Solution

The fourth proportional to 5,428,997.20, 7,490,336.16 and 3,136,321.36 is: 4,327,152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,997.20 : 7,490,336.16 = 3,136,321.36 : x
  2. Step 2: Convert to fraction form
    5,428,997.20/7,490,336.16 = 3,136,321.36/x
  3. Step 3: Cross multiply
    5,428,997.20x = 7,490,336.16 × 3,136,321.36
  4. Step 4: Simplify right side
    5,428,997.20x = 23,492,101,292,188.38
  5. Step 5: Solve for x
    x = 23,492,101,292,188.38/5,428,997.20
  6. Step 6: Final answer
    x = 4,327,152.96

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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.