Home / 57,489,787.72-86,173,270.62-28,679,124.52

Finding the Fourth Proportional to 57,489,787.72, 86,173,270.62 and 28,679,124.52

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Solution

The fourth proportional to 57,489,787.72, 86,173,270.62 and 28,679,124.52 is: 42,988,051.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489,787.72 : 86,173,270.62 = 28,679,124.52 : x
  2. Step 2: Convert to fraction form
    57,489,787.72/86,173,270.62 = 28,679,124.52/x
  3. Step 3: Cross multiply
    57,489,787.72x = 86,173,270.62 × 28,679,124.52
  4. Step 4: Simplify right side
    57,489,787.72x = 2,471,373,958,406,637.50
  5. Step 5: Solve for x
    x = 2,471,373,958,406,637.50/57,489,787.72
  6. Step 6: Final answer
    x = 42,988,051.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.