Home / 278,577,049.12-384,317,078.16-173,973,519.52

Finding the Fourth Proportional to 278,577,049.12, 384,317,078.16 and 173,973,519.52

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Solution

The fourth proportional to 278,577,049.12, 384,317,078.16 and 173,973,519.52 is: 240,008,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,577,049.12 : 384,317,078.16 = 173,973,519.52 : x
  2. Step 2: Convert to fraction form
    278,577,049.12/384,317,078.16 = 173,973,519.52/x
  3. Step 3: Cross multiply
    278,577,049.12x = 384,317,078.16 × 173,973,519.52
  4. Step 4: Simplify right side
    278,577,049.12x = 66,860,994,699,138,136
  5. Step 5: Solve for x
    x = 66,860,994,699,138,136/278,577,049.12
  6. Step 6: Final answer
    x = 240,008,984.63

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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.