Home / 30,146,287.05-45,239,587.98-12,878,523.38

Finding the Fourth Proportional to 30,146,287.05, 45,239,587.98 and 12,878,523.38

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Solution

The fourth proportional to 30,146,287.05, 45,239,587.98 and 12,878,523.38 is: 19,326,396.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146,287.05 : 45,239,587.98 = 12,878,523.38 : x
  2. Step 2: Convert to fraction form
    30,146,287.05/45,239,587.98 = 12,878,523.38/x
  3. Step 3: Cross multiply
    30,146,287.05x = 45,239,587.98 × 12,878,523.38
  4. Step 4: Simplify right side
    30,146,287.05x = 582,619,091,275,799
  5. Step 5: Solve for x
    x = 582,619,091,275,799/30,146,287.05
  6. Step 6: Final answer
    x = 19,326,396.33

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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.