Home / 81,630,355.35-112,645,637.78-50,689,860.87

Finding the Fourth Proportional to 81,630,355.35, 112,645,637.78 and 50,689,860.87

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Solution

The fourth proportional to 81,630,355.35, 112,645,637.78 and 50,689,860.87 is: 69,949,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,630,355.35 : 112,645,637.78 = 50,689,860.87 : x
  2. Step 2: Convert to fraction form
    81,630,355.35/112,645,637.78 = 50,689,860.87/x
  3. Step 3: Cross multiply
    81,630,355.35x = 112,645,637.78 × 50,689,860.87
  4. Step 4: Simplify right side
    81,630,355.35x = 5,709,991,706,427,166
  5. Step 5: Solve for x
    x = 5,709,991,706,427,166/81,630,355.35
  6. Step 6: Final answer
    x = 69,949,367.27

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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.