Home / 18,447,620.80-27,671,431.20-6,480,356.80

Finding the Fourth Proportional to 18,447,620.80, 27,671,431.20 and 6,480,356.80

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Solution

The fourth proportional to 18,447,620.80, 27,671,431.20 and 6,480,356.80 is: 9,720,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447,620.80 : 27,671,431.20 = 6,480,356.80 : x
  2. Step 2: Convert to fraction form
    18,447,620.80/27,671,431.20 = 6,480,356.80/x
  3. Step 3: Cross multiply
    18,447,620.80x = 27,671,431.20 × 6,480,356.80
  4. Step 4: Simplify right side
    18,447,620.80x = 179,320,747,342,652.16
  5. Step 5: Solve for x
    x = 179,320,747,342,652.16/18,447,620.80
  6. Step 6: Final answer
    x = 9,720,535.20

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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.