Home / 681,077,860.04-1,021,519,785.22-214,678,670.84

Finding the Fourth Proportional to 681,077,860.04, 1,021,519,785.22 and 214,678,670.84

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Solution

The fourth proportional to 681,077,860.04, 1,021,519,785.22 and 214,678,670.84 is: 321,987,429.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,077,860.04 : 1,021,519,785.22 = 214,678,670.84 : x
  2. Step 2: Convert to fraction form
    681,077,860.04/1,021,519,785.22 = 214,678,670.84/x
  3. Step 3: Cross multiply
    681,077,860.04x = 1,021,519,785.22 × 214,678,670.84
  4. Step 4: Simplify right side
    681,077,860.04x = 219,298,509,727,791,872
  5. Step 5: Solve for x
    x = 219,298,509,727,791,872/681,077,860.04
  6. Step 6: Final answer
    x = 321,987,429.92

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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.