Home / 278,490,564.71-384,327,351.09-166,999,557.32

Finding the Fourth Proportional to 278,490,564.71, 384,327,351.09 and 166,999,557.32

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Solution

The fourth proportional to 278,490,564.71, 384,327,351.09 and 166,999,557.32 is: 230,465,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,490,564.71 : 384,327,351.09 = 166,999,557.32 : x
  2. Step 2: Convert to fraction form
    278,490,564.71/384,327,351.09 = 166,999,557.32/x
  3. Step 3: Cross multiply
    278,490,564.71x = 384,327,351.09 × 166,999,557.32
  4. Step 4: Simplify right side
    278,490,564.71x = 64,182,497,497,998,216
  5. Step 5: Solve for x
    x = 64,182,497,497,998,216/278,490,564.71
  6. Step 6: Final answer
    x = 230,465,608.65

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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.