Home / 20,803,041.20-31,204,561.80-19,543,329.20

Finding the Fourth Proportional to 20,803,041.20, 31,204,561.80 and 19,543,329.20

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Solution

The fourth proportional to 20,803,041.20, 31,204,561.80 and 19,543,329.20 is: 29,314,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,041.20 : 31,204,561.80 = 19,543,329.20 : x
  2. Step 2: Convert to fraction form
    20,803,041.20/31,204,561.80 = 19,543,329.20/x
  3. Step 3: Cross multiply
    20,803,041.20x = 31,204,561.80 × 19,543,329.20
  4. Step 4: Simplify right side
    20,803,041.20x = 609,841,023,799,144.50
  5. Step 5: Solve for x
    x = 609,841,023,799,144.50/20,803,041.20
  6. Step 6: Final answer
    x = 29,314,993.80

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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.