Home / 215,155,711.20-321,055,476.76-191,967,241.84

Finding the Fourth Proportional to 215,155,711.20, 321,055,476.76 and 191,967,241.84

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Solution

The fourth proportional to 215,155,711.20, 321,055,476.76 and 191,967,241.84 is: 286,453,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,155,711.20 : 321,055,476.76 = 191,967,241.84 : x
  2. Step 2: Convert to fraction form
    215,155,711.20/321,055,476.76 = 191,967,241.84/x
  3. Step 3: Cross multiply
    215,155,711.20x = 321,055,476.76 × 191,967,241.84
  4. Step 4: Simplify right side
    215,155,711.20x = 61,632,134,351,243,416
  5. Step 5: Solve for x
    x = 61,632,134,351,243,416/215,155,711.20
  6. Step 6: Final answer
    x = 286,453,629.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.