Home / 87,652,318.37-120,998,942.93-52,382,569.01

Finding the Fourth Proportional to 87,652,318.37, 120,998,942.93 and 52,382,569.01

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Solution

The fourth proportional to 87,652,318.37, 120,998,942.93 and 52,382,569.01 is: 72,311,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,652,318.37 : 120,998,942.93 = 52,382,569.01 : x
  2. Step 2: Convert to fraction form
    87,652,318.37/120,998,942.93 = 52,382,569.01/x
  3. Step 3: Cross multiply
    87,652,318.37x = 120,998,942.93 × 52,382,569.01
  4. Step 4: Simplify right side
    87,652,318.37x = 6,338,235,477,693,739
  5. Step 5: Solve for x
    x = 6,338,235,477,693,739/87,652,318.37
  6. Step 6: Final answer
    x = 72,311,099.08

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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.