Home / 9,121,169.20-13,672,729.80-4,320,420.40

Finding the Fourth Proportional to 9,121,169.20, 13,672,729.80 and 4,320,420.40

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Solution

The fourth proportional to 9,121,169.20, 13,672,729.80 and 4,320,420.40 is: 6,476,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121,169.20 : 13,672,729.80 = 4,320,420.40 : x
  2. Step 2: Convert to fraction form
    9,121,169.20/13,672,729.80 = 4,320,420.40/x
  3. Step 3: Cross multiply
    9,121,169.20x = 13,672,729.80 × 4,320,420.40
  4. Step 4: Simplify right side
    9,121,169.20x = 59,071,940,751,607.93
  5. Step 5: Solve for x
    x = 59,071,940,751,607.93/9,121,169.20
  6. Step 6: Final answer
    x = 6,476,356.21

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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.