Home / 878,586,443.15-1,212,445,965.51-482,116,067.55

Finding the Fourth Proportional to 878,586,443.15, 1,212,445,965.51 and 482,116,067.55

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Solution

The fourth proportional to 878,586,443.15, 1,212,445,965.51 and 482,116,067.55 is: 665,318,348.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,586,443.15 : 1,212,445,965.51 = 482,116,067.55 : x
  2. Step 2: Convert to fraction form
    878,586,443.15/1,212,445,965.51 = 482,116,067.55/x
  3. Step 3: Cross multiply
    878,586,443.15x = 1,212,445,965.51 × 482,116,067.55
  4. Step 4: Simplify right side
    878,586,443.15x = 584,539,681,008,544,128
  5. Step 5: Solve for x
    x = 584,539,681,008,544,128/878,586,443.15
  6. Step 6: Final answer
    x = 665,318,348.09

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Double scale
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1.5x scale

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.