Home / 130,381,644.20-179,936,676.65-74,644,546.78

Finding the Fourth Proportional to 130,381,644.20, 179,936,676.65 and 74,644,546.78

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Solution

The fourth proportional to 130,381,644.20, 179,936,676.65 and 74,644,546.78 is: 103,015,204.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,381,644.20 : 179,936,676.65 = 74,644,546.78 : x
  2. Step 2: Convert to fraction form
    130,381,644.20/179,936,676.65 = 74,644,546.78/x
  3. Step 3: Cross multiply
    130,381,644.20x = 179,936,676.65 × 74,644,546.78
  4. Step 4: Simplify right side
    130,381,644.20x = 13,431,291,677,375,430
  5. Step 5: Solve for x
    x = 13,431,291,677,375,430/130,381,644.20
  6. Step 6: Final answer
    x = 103,015,204.02

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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.