Home / 87,097,949.19-120,133,975.85-57,319,109.46

Finding the Fourth Proportional to 87,097,949.19, 120,133,975.85 and 57,319,109.46

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Solution

The fourth proportional to 87,097,949.19, 120,133,975.85 and 57,319,109.46 is: 79,060,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,097,949.19 : 120,133,975.85 = 57,319,109.46 : x
  2. Step 2: Convert to fraction form
    87,097,949.19/120,133,975.85 = 57,319,109.46/x
  3. Step 3: Cross multiply
    87,097,949.19x = 120,133,975.85 × 57,319,109.46
  4. Step 4: Simplify right side
    87,097,949.19x = 6,885,972,511,611,146
  5. Step 5: Solve for x
    x = 6,885,972,511,611,146/87,097,949.19
  6. Step 6: Final answer
    x = 79,060,099.30

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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.