Home / 20,993,427.20-31,490,140.80-8,876,572.40

Finding the Fourth Proportional to 20,993,427.20, 31,490,140.80 and 8,876,572.40

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Solution

The fourth proportional to 20,993,427.20, 31,490,140.80 and 8,876,572.40 is: 13,314,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,427.20 : 31,490,140.80 = 8,876,572.40 : x
  2. Step 2: Convert to fraction form
    20,993,427.20/31,490,140.80 = 8,876,572.40/x
  3. Step 3: Cross multiply
    20,993,427.20x = 31,490,140.80 × 8,876,572.40
  4. Step 4: Simplify right side
    20,993,427.20x = 279,524,514,697,393.94
  5. Step 5: Solve for x
    x = 279,524,514,697,393.94/20,993,427.20
  6. Step 6: Final answer
    x = 13,314,858.60

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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.