Home / 57,188,304.45-78,920,659.13-31,082,814.45

Finding the Fourth Proportional to 57,188,304.45, 78,920,659.13 and 31,082,814.45

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Solution

The fourth proportional to 57,188,304.45, 78,920,659.13 and 31,082,814.45 is: 42,894,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,188,304.45 : 78,920,659.13 = 31,082,814.45 : x
  2. Step 2: Convert to fraction form
    57,188,304.45/78,920,659.13 = 31,082,814.45/x
  3. Step 3: Cross multiply
    57,188,304.45x = 78,920,659.13 × 31,082,814.45
  4. Step 4: Simplify right side
    57,188,304.45x = 2,453,076,203,854,074.50
  5. Step 5: Solve for x
    x = 2,453,076,203,854,074.50/57,188,304.45
  6. Step 6: Final answer
    x = 42,894,718.20

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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.