Home / 76,680,961.56-105,819,634.80-45,330,309.72

Finding the Fourth Proportional to 76,680,961.56, 105,819,634.80 and 45,330,309.72

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Solution

The fourth proportional to 76,680,961.56, 105,819,634.80 and 45,330,309.72 is: 62,555,772.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,680,961.56 : 105,819,634.80 = 45,330,309.72 : x
  2. Step 2: Convert to fraction form
    76,680,961.56/105,819,634.80 = 45,330,309.72/x
  3. Step 3: Cross multiply
    76,680,961.56x = 105,819,634.80 × 45,330,309.72
  4. Step 4: Simplify right side
    76,680,961.56x = 4,796,836,819,941,290
  5. Step 5: Solve for x
    x = 4,796,836,819,941,290/76,680,961.56
  6. Step 6: Final answer
    x = 62,555,772.94

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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.