Home / 278,490,562.71-384,327,348.33-166,999,555.32

Finding the Fourth Proportional to 278,490,562.71, 384,327,348.33 and 166,999,555.32

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Solution

The fourth proportional to 278,490,562.71, 384,327,348.33 and 166,999,555.32 is: 230,465,605.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,490,562.71 : 384,327,348.33 = 166,999,555.32 : x
  2. Step 2: Convert to fraction form
    278,490,562.71/384,327,348.33 = 166,999,555.32/x
  3. Step 3: Cross multiply
    278,490,562.71x = 384,327,348.33 × 166,999,555.32
  4. Step 4: Simplify right side
    278,490,562.71x = 64,182,496,268,424,736
  5. Step 5: Solve for x
    x = 64,182,496,268,424,736/278,490,562.71
  6. Step 6: Final answer
    x = 230,465,605.89

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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.