Home / 209,493,332-289,100,886.72-121,438,405.52

Finding the Fourth Proportional to 209,493,332, 289,100,886.72 and 121,438,405.52

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Solution

The fourth proportional to 209,493,332, 289,100,886.72 and 121,438,405.52 is: 167,585,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,493,332 : 289,100,886.72 = 121,438,405.52 : x
  2. Step 2: Convert to fraction form
    209,493,332/289,100,886.72 = 121,438,405.52/x
  3. Step 3: Cross multiply
    209,493,332x = 289,100,886.72 × 121,438,405.52
  4. Step 4: Simplify right side
    209,493,332x = 35,107,950,717,694,944
  5. Step 5: Solve for x
    x = 35,107,950,717,694,944/209,493,332
  6. Step 6: Final answer
    x = 167,585,050.95

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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.