Home / 57,008,874.18-78,672,351.35-30,903,311.28

Finding the Fourth Proportional to 57,008,874.18, 78,672,351.35 and 30,903,311.28

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Solution

The fourth proportional to 57,008,874.18, 78,672,351.35 and 30,903,311.28 is: 42,646,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008,874.18 : 78,672,351.35 = 30,903,311.28 : x
  2. Step 2: Convert to fraction form
    57,008,874.18/78,672,351.35 = 30,903,311.28/x
  3. Step 3: Cross multiply
    57,008,874.18x = 78,672,351.35 × 30,903,311.28
  4. Step 4: Simplify right side
    57,008,874.18x = 2,431,236,162,898,578
  5. Step 5: Solve for x
    x = 2,431,236,162,898,578/57,008,874.18
  6. Step 6: Final answer
    x = 42,646,626.47

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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.