Home / 810,845,265.78-1,216,145,007.83-220,681,494.50

Finding the Fourth Proportional to 810,845,265.78, 1,216,145,007.83 and 220,681,494.50

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Solution

The fourth proportional to 810,845,265.78, 1,216,145,007.83 and 220,681,494.50 is: 330,988,795.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,845,265.78 : 1,216,145,007.83 = 220,681,494.50 : x
  2. Step 2: Convert to fraction form
    810,845,265.78/1,216,145,007.83 = 220,681,494.50/x
  3. Step 3: Cross multiply
    810,845,265.78x = 1,216,145,007.83 × 220,681,494.50
  4. Step 4: Simplify right side
    810,845,265.78x = 268,380,697,851,109,568
  5. Step 5: Solve for x
    x = 268,380,697,851,109,568/810,845,265.78
  6. Step 6: Final answer
    x = 330,988,795.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.