Home / 387,071,774.55-534,158,813.39-213,231,518.55

Finding the Fourth Proportional to 387,071,774.55, 534,158,813.39 and 213,231,518.55

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Solution

The fourth proportional to 387,071,774.55, 534,158,813.39 and 213,231,518.55 is: 294,259,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,071,774.55 : 534,158,813.39 = 213,231,518.55 : x
  2. Step 2: Convert to fraction form
    387,071,774.55/534,158,813.39 = 213,231,518.55/x
  3. Step 3: Cross multiply
    387,071,774.55x = 534,158,813.39 × 213,231,518.55
  4. Step 4: Simplify right side
    387,071,774.55x = 113,899,494,924,949,616
  5. Step 5: Solve for x
    x = 113,899,494,924,949,616/387,071,774.55
  6. Step 6: Final answer
    x = 294,259,365.87

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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.