Home / 505,961,277.73-698,213,448.52-279,908,612.89

Finding the Fourth Proportional to 505,961,277.73, 698,213,448.52 and 279,908,612.89

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Solution

The fourth proportional to 505,961,277.73, 698,213,448.52 and 279,908,612.89 is: 386,266,630.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,961,277.73 : 698,213,448.52 = 279,908,612.89 : x
  2. Step 2: Convert to fraction form
    505,961,277.73/698,213,448.52 = 279,908,612.89/x
  3. Step 3: Cross multiply
    505,961,277.73x = 698,213,448.52 × 279,908,612.89
  4. Step 4: Simplify right side
    505,961,277.73x = 195,435,957,873,931,328
  5. Step 5: Solve for x
    x = 195,435,957,873,931,328/505,961,277.73
  6. Step 6: Final answer
    x = 386,266,630.43

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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.