Home / 200,423,515.36-300,561,534.42-69,232,407.52

Finding the Fourth Proportional to 200,423,515.36, 300,561,534.42 and 69,232,407.52

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Solution

The fourth proportional to 200,423,515.36, 300,561,534.42 and 69,232,407.52 is: 103,823,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,423,515.36 : 300,561,534.42 = 69,232,407.52 : x
  2. Step 2: Convert to fraction form
    200,423,515.36/300,561,534.42 = 69,232,407.52/x
  3. Step 3: Cross multiply
    200,423,515.36x = 300,561,534.42 × 69,232,407.52
  4. Step 4: Simplify right side
    200,423,515.36x = 20,808,598,635,801,948
  5. Step 5: Solve for x
    x = 20,808,598,635,801,948/200,423,515.36
  6. Step 6: Final answer
    x = 103,823,139.71

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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.