Home / 71,339,168.34-98,454,123.84-40,404,840.66

Finding the Fourth Proportional to 71,339,168.34, 98,454,123.84 and 40,404,840.66

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Solution

The fourth proportional to 71,339,168.34, 98,454,123.84 and 40,404,840.66 is: 55,762,118.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,339,168.34 : 98,454,123.84 = 40,404,840.66 : x
  2. Step 2: Convert to fraction form
    71,339,168.34/98,454,123.84 = 40,404,840.66/x
  3. Step 3: Cross multiply
    71,339,168.34x = 98,454,123.84 × 40,404,840.66
  4. Step 4: Simplify right side
    71,339,168.34x = 3,978,023,186,075,107
  5. Step 5: Solve for x
    x = 3,978,023,186,075,107/71,339,168.34
  6. Step 6: Final answer
    x = 55,762,118.88

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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.