Home / 5,428,993.20-7,490,330.64-3,136,317.36

Finding the Fourth Proportional to 5,428,993.20, 7,490,330.64 and 3,136,317.36

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Solution

The fourth proportional to 5,428,993.20, 7,490,330.64 and 3,136,317.36 is: 4,327,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,993.20 : 7,490,330.64 = 3,136,317.36 : x
  2. Step 2: Convert to fraction form
    5,428,993.20/7,490,330.64 = 3,136,317.36/x
  3. Step 3: Cross multiply
    5,428,993.20x = 7,490,330.64 × 3,136,317.36
  4. Step 4: Simplify right side
    5,428,993.20x = 23,492,054,018,371.91
  5. Step 5: Solve for x
    x = 23,492,054,018,371.91/5,428,993.20
  6. Step 6: Final answer
    x = 4,327,147.44

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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.