Home / 278,436,567.40-384,275,865.30-166,988,720.44

Finding the Fourth Proportional to 278,436,567.40, 384,275,865.30 and 166,988,720.44

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Solution

The fourth proportional to 278,436,567.40, 384,275,865.30 and 166,988,720.44 is: 230,464,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,436,567.40 : 384,275,865.30 = 166,988,720.44 : x
  2. Step 2: Convert to fraction form
    278,436,567.40/384,275,865.30 = 166,988,720.44/x
  3. Step 3: Cross multiply
    278,436,567.40x = 384,275,865.30 × 166,988,720.44
  4. Step 4: Simplify right side
    278,436,567.40x = 64,169,735,042,420,800
  5. Step 5: Solve for x
    x = 64,169,735,042,420,800/278,436,567.40
  6. Step 6: Final answer
    x = 230,464,466.80

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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.