Home / 394,270,519.95-544,071,276.95-215,619,126.39

Finding the Fourth Proportional to 394,270,519.95, 544,071,276.95 and 215,619,126.39

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Solution

The fourth proportional to 394,270,519.95, 544,071,276.95 and 215,619,126.39 is: 297,542,340.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,270,519.95 : 544,071,276.95 = 215,619,126.39 : x
  2. Step 2: Convert to fraction form
    394,270,519.95/544,071,276.95 = 215,619,126.39/x
  3. Step 3: Cross multiply
    394,270,519.95x = 544,071,276.95 × 215,619,126.39
  4. Step 4: Simplify right side
    394,270,519.95x = 117,312,173,428,772,656
  5. Step 5: Solve for x
    x = 117,312,173,428,772,656/394,270,519.95
  6. Step 6: Final answer
    x = 297,542,340.84

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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.