Home / 291,469,722.35-402,227,240.31-159,310,642.37

Finding the Fourth Proportional to 291,469,722.35, 402,227,240.31 and 159,310,642.37

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Solution

The fourth proportional to 291,469,722.35, 402,227,240.31 and 159,310,642.37 is: 219,848,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,469,722.35 : 402,227,240.31 = 159,310,642.37 : x
  2. Step 2: Convert to fraction form
    291,469,722.35/402,227,240.31 = 159,310,642.37/x
  3. Step 3: Cross multiply
    291,469,722.35x = 402,227,240.31 × 159,310,642.37
  4. Step 4: Simplify right side
    291,469,722.35x = 64,079,080,030,487,328
  5. Step 5: Solve for x
    x = 64,079,080,030,487,328/291,469,722.35
  6. Step 6: Final answer
    x = 219,848,152.72

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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.