Home / 56,771,170.47-78,344,245.53-30,665,687.76

Finding the Fourth Proportional to 56,771,170.47, 78,344,245.53 and 30,665,687.76

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Solution

The fourth proportional to 56,771,170.47, 78,344,245.53 and 30,665,687.76 is: 42,318,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771,170.47 : 78,344,245.53 = 30,665,687.76 : x
  2. Step 2: Convert to fraction form
    56,771,170.47/78,344,245.53 = 30,665,687.76/x
  3. Step 3: Cross multiply
    56,771,170.47x = 78,344,245.53 × 30,665,687.76
  4. Step 4: Simplify right side
    56,771,170.47x = 2,402,480,171,215,756
  5. Step 5: Solve for x
    x = 2,402,480,171,215,756/56,771,170.47
  6. Step 6: Final answer
    x = 42,318,665.47

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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.