Home / 278,490,568.72-384,327,356.62-166,999,561.32

Finding the Fourth Proportional to 278,490,568.72, 384,327,356.62 and 166,999,561.32

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Solution

The fourth proportional to 278,490,568.72, 384,327,356.62 and 166,999,561.32 is: 230,465,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,490,568.72 : 384,327,356.62 = 166,999,561.32 : x
  2. Step 2: Convert to fraction form
    278,490,568.72/384,327,356.62 = 166,999,561.32/x
  3. Step 3: Cross multiply
    278,490,568.72x = 384,327,356.62 × 166,999,561.32
  4. Step 4: Simplify right side
    278,490,568.72x = 64,182,499,958,815,192
  5. Step 5: Solve for x
    x = 64,182,499,958,815,192/278,490,568.72
  6. Step 6: Final answer
    x = 230,465,614.16

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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.