Home / 72,431,595.90-108,647,393.85-18,578,907.90

Finding the Fourth Proportional to 72,431,595.90, 108,647,393.85 and 18,578,907.90

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Solution

The fourth proportional to 72,431,595.90, 108,647,393.85 and 18,578,907.90 is: 27,868,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,431,595.90 : 108,647,393.85 = 18,578,907.90 : x
  2. Step 2: Convert to fraction form
    72,431,595.90/108,647,393.85 = 18,578,907.90/x
  3. Step 3: Cross multiply
    72,431,595.90x = 108,647,393.85 × 18,578,907.90
  4. Step 4: Simplify right side
    72,431,595.90x = 2,018,549,923,914,176.25
  5. Step 5: Solve for x
    x = 2,018,549,923,914,176.25/72,431,595.90
  6. Step 6: Final answer
    x = 27,868,361.85

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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.