Home / 20,719,662.52-31,074,192.28-6,143,173.48

Finding the Fourth Proportional to 20,719,662.52, 31,074,192.28 and 6,143,173.48

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Solution

The fourth proportional to 20,719,662.52, 31,074,192.28 and 6,143,173.48 is: 9,213,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719,662.52 : 31,074,192.28 = 6,143,173.48 : x
  2. Step 2: Convert to fraction form
    20,719,662.52/31,074,192.28 = 6,143,173.48/x
  3. Step 3: Cross multiply
    20,719,662.52x = 31,074,192.28 × 6,143,173.48
  4. Step 4: Simplify right side
    20,719,662.52x = 190,894,153,926,916.75
  5. Step 5: Solve for x
    x = 190,894,153,926,916.75/20,719,662.52
  6. Step 6: Final answer
    x = 9,213,188.38

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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.