Home / 57,187,951.86-78,920,172.81-31,082,461.86

Finding the Fourth Proportional to 57,187,951.86, 78,920,172.81 and 31,082,461.86

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Solution

The fourth proportional to 57,187,951.86, 78,920,172.81 and 31,082,461.86 is: 42,894,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,187,951.86 : 78,920,172.81 = 31,082,461.86 : x
  2. Step 2: Convert to fraction form
    57,187,951.86/78,920,172.81 = 31,082,461.86/x
  3. Step 3: Cross multiply
    57,187,951.86x = 78,920,172.81 × 31,082,461.86
  4. Step 4: Simplify right side
    57,187,951.86x = 2,453,033,261,351,434
  5. Step 5: Solve for x
    x = 2,453,033,261,351,434/57,187,951.86
  6. Step 6: Final answer
    x = 42,894,231.77

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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.