Home / 28,678,492.40-42,893,322.60-25,667,625.20

Finding the Fourth Proportional to 28,678,492.40, 42,893,322.60 and 25,667,625.20

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Solution

The fourth proportional to 28,678,492.40, 42,893,322.60 and 25,667,625.20 is: 38,390,083.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678,492.40 : 42,893,322.60 = 25,667,625.20 : x
  2. Step 2: Convert to fraction form
    28,678,492.40/42,893,322.60 = 25,667,625.20/x
  3. Step 3: Cross multiply
    28,678,492.40x = 42,893,322.60 × 25,667,625.20
  4. Step 4: Simplify right side
    28,678,492.40x = 1,100,969,728,079,489.50
  5. Step 5: Solve for x
    x = 1,100,969,728,079,489.50/28,678,492.40
  6. Step 6: Final answer
    x = 38,390,083.86

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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.