Home / 56,894,877.88-78,515,170.84-30,789,396.96

Finding the Fourth Proportional to 56,894,877.88, 78,515,170.84 and 30,789,396.96

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Solution

The fourth proportional to 56,894,877.88, 78,515,170.84 and 30,789,396.96 is: 42,489,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,894,877.88 : 78,515,170.84 = 30,789,396.96 : x
  2. Step 2: Convert to fraction form
    56,894,877.88/78,515,170.84 = 30,789,396.96/x
  3. Step 3: Cross multiply
    56,894,877.88x = 78,515,170.84 × 30,789,396.96
  4. Step 4: Simplify right side
    56,894,877.88x = 2,417,434,762,374,977
  5. Step 5: Solve for x
    x = 2,417,434,762,374,977/56,894,877.88
  6. Step 6: Final answer
    x = 42,489,497.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.