Home / 1,255,815,954.78-1,884,007,723.12-415,456,727.10

Finding the Fourth Proportional to 1,255,815,954.78, 1,884,007,723.12 and 415,456,727.10

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Solution

The fourth proportional to 1,255,815,954.78, 1,884,007,723.12 and 415,456,727.10 is: 623,278,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,815,954.78 : 1,884,007,723.12 = 415,456,727.10 : x
  2. Step 2: Convert to fraction form
    1,255,815,954.78/1,884,007,723.12 = 415,456,727.10/x
  3. Step 3: Cross multiply
    1,255,815,954.78x = 1,884,007,723.12 × 415,456,727.10
  4. Step 4: Simplify right side
    1,255,815,954.78x = 782,723,682,478,558,208
  5. Step 5: Solve for x
    x = 782,723,682,478,558,208/1,255,815,954.78
  6. Step 6: Final answer
    x = 623,278,976.11

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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.