Home / 8,978,672.25-12,390,569.09-4,904,291.25

Finding the Fourth Proportional to 8,978,672.25, 12,390,569.09 and 4,904,291.25

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Solution

The fourth proportional to 8,978,672.25, 12,390,569.09 and 4,904,291.25 is: 6,767,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,978,672.25 : 12,390,569.09 = 4,904,291.25 : x
  2. Step 2: Convert to fraction form
    8,978,672.25/12,390,569.09 = 4,904,291.25/x
  3. Step 3: Cross multiply
    8,978,672.25x = 12,390,569.09 × 4,904,291.25
  4. Step 4: Simplify right side
    8,978,672.25x = 60,766,959,564,477.09
  5. Step 5: Solve for x
    x = 60,766,959,564,477.09/8,978,672.25
  6. Step 6: Final answer
    x = 6,767,922.68

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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.