Home / 55,772,163.88-76,962,773.96-30,991,818.60

Finding the Fourth Proportional to 55,772,163.88, 76,962,773.96 and 30,991,818.60

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Solution

The fourth proportional to 55,772,163.88, 76,962,773.96 and 30,991,818.60 is: 42,767,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,772,163.88 : 76,962,773.96 = 30,991,818.60 : x
  2. Step 2: Convert to fraction form
    55,772,163.88/76,962,773.96 = 30,991,818.60/x
  3. Step 3: Cross multiply
    55,772,163.88x = 76,962,773.96 × 30,991,818.60
  4. Step 4: Simplify right side
    55,772,163.88x = 2,385,216,329,521,123.50
  5. Step 5: Solve for x
    x = 2,385,216,329,521,123.50/55,772,163.88
  6. Step 6: Final answer
    x = 42,767,146.97

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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.