Home / 81,630,353.85-112,645,635.71-50,689,859.37

Finding the Fourth Proportional to 81,630,353.85, 112,645,635.71 and 50,689,859.37

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Solution

The fourth proportional to 81,630,353.85, 112,645,635.71 and 50,689,859.37 is: 69,949,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,630,353.85 : 112,645,635.71 = 50,689,859.37 : x
  2. Step 2: Convert to fraction form
    81,630,353.85/112,645,635.71 = 50,689,859.37/x
  3. Step 3: Cross multiply
    81,630,353.85x = 112,645,635.71 × 50,689,859.37
  4. Step 4: Simplify right side
    81,630,353.85x = 5,709,991,432,530,700
  5. Step 5: Solve for x
    x = 5,709,991,432,530,700/81,630,353.85
  6. Step 6: Final answer
    x = 69,949,365.20

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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.