Home / 87,011,049.98-120,072,852.83-47,852,840.97

Finding the Fourth Proportional to 87,011,049.98, 120,072,852.83 and 47,852,840.97

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Solution

The fourth proportional to 87,011,049.98, 120,072,852.83 and 47,852,840.97 is: 66,035,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,011,049.98 : 120,072,852.83 = 47,852,840.97 : x
  2. Step 2: Convert to fraction form
    87,011,049.98/120,072,852.83 = 47,852,840.97/x
  3. Step 3: Cross multiply
    87,011,049.98x = 120,072,852.83 × 47,852,840.97
  4. Step 4: Simplify right side
    87,011,049.98x = 5,745,827,131,407,836
  5. Step 5: Solve for x
    x = 5,745,827,131,407,836/87,011,049.98
  6. Step 6: Final answer
    x = 66,035,602.75

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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.