Home / 256,004,095.35-353,286,265.69-138,530,686.15

Finding the Fourth Proportional to 256,004,095.35, 353,286,265.69 and 138,530,686.15

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Solution

The fourth proportional to 256,004,095.35, 353,286,265.69 and 138,530,686.15 is: 191,172,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,004,095.35 : 353,286,265.69 = 138,530,686.15 : x
  2. Step 2: Convert to fraction form
    256,004,095.35/353,286,265.69 = 138,530,686.15/x
  3. Step 3: Cross multiply
    256,004,095.35x = 353,286,265.69 × 138,530,686.15
  4. Step 4: Simplify right side
    256,004,095.35x = 48,940,988,792,632,696
  5. Step 5: Solve for x
    x = 48,940,988,792,632,696/256,004,095.35
  6. Step 6: Final answer
    x = 191,172,679.19

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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.