Home / 129,990,219.45-194,983,360.89-31,622,852.31

Finding the Fourth Proportional to 129,990,219.45, 194,983,360.89 and 31,622,852.31

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Solution

The fourth proportional to 129,990,219.45, 194,983,360.89 and 31,622,852.31 is: 47,433,799.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,990,219.45 : 194,983,360.89 = 31,622,852.31 : x
  2. Step 2: Convert to fraction form
    129,990,219.45/194,983,360.89 = 31,622,852.31/x
  3. Step 3: Cross multiply
    129,990,219.45x = 194,983,360.89 × 31,622,852.31
  4. Step 4: Simplify right side
    129,990,219.45x = 6,165,930,024,331,899
  5. Step 5: Solve for x
    x = 6,165,930,024,331,899/129,990,219.45
  6. Step 6: Final answer
    x = 47,433,799.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.