Home / 112,171,157.87-154,822,026.11-65,776,358.57

Finding the Fourth Proportional to 112,171,157.87, 154,822,026.11 and 65,776,358.57

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Solution

The fourth proportional to 112,171,157.87, 154,822,026.11 and 65,776,358.57 is: 90,786,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,171,157.87 : 154,822,026.11 = 65,776,358.57 : x
  2. Step 2: Convert to fraction form
    112,171,157.87/154,822,026.11 = 65,776,358.57/x
  3. Step 3: Cross multiply
    112,171,157.87x = 154,822,026.11 × 65,776,358.57
  4. Step 4: Simplify right side
    112,171,157.87x = 10,183,629,102,842,270
  5. Step 5: Solve for x
    x = 10,183,629,102,842,270/112,171,157.87
  6. Step 6: Final answer
    x = 90,786,520.32

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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.