Home / 112,172,201.37-154,823,465.88-65,777,402.07

Finding the Fourth Proportional to 112,172,201.37, 154,823,465.88 and 65,777,402.07

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Solution

The fourth proportional to 112,172,201.37, 154,823,465.88 and 65,777,402.07 is: 90,787,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,172,201.37 : 154,823,465.88 = 65,777,402.07 : x
  2. Step 2: Convert to fraction form
    112,172,201.37/154,823,465.88 = 65,777,402.07/x
  3. Step 3: Cross multiply
    112,172,201.37x = 154,823,465.88 × 65,777,402.07
  4. Step 4: Simplify right side
    112,172,201.37x = 10,183,885,365,059,686
  5. Step 5: Solve for x
    x = 10,183,885,365,059,686/112,172,201.37
  6. Step 6: Final answer
    x = 90,787,960.30

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1.5x scale

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.