Home / 75,704,415.78-113,557,524.80-21,113,679.86

Finding the Fourth Proportional to 75,704,415.78, 113,557,524.80 and 21,113,679.86

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Solution

The fourth proportional to 75,704,415.78, 113,557,524.80 and 21,113,679.86 is: 31,670,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,704,415.78 : 113,557,524.80 = 21,113,679.86 : x
  2. Step 2: Convert to fraction form
    75,704,415.78/113,557,524.80 = 21,113,679.86/x
  3. Step 3: Cross multiply
    75,704,415.78x = 113,557,524.80 × 21,113,679.86
  4. Step 4: Simplify right side
    75,704,415.78x = 2,397,617,224,321,210.50
  5. Step 5: Solve for x
    x = 2,397,617,224,321,210.50/75,704,415.78
  6. Step 6: Final answer
    x = 31,670,771.11

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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.