Home / 26,429,021.20-39,643,531.80-8,479,939.60

Finding the Fourth Proportional to 26,429,021.20, 39,643,531.80 and 8,479,939.60

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Solution

The fourth proportional to 26,429,021.20, 39,643,531.80 and 8,479,939.60 is: 12,719,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,429,021.20 : 39,643,531.80 = 8,479,939.60 : x
  2. Step 2: Convert to fraction form
    26,429,021.20/39,643,531.80 = 8,479,939.60/x
  3. Step 3: Cross multiply
    26,429,021.20x = 39,643,531.80 × 8,479,939.60
  4. Step 4: Simplify right side
    26,429,021.20x = 336,174,755,194,679.25
  5. Step 5: Solve for x
    x = 336,174,755,194,679.25/26,429,021.20
  6. Step 6: Final answer
    x = 12,719,909.40

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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.