Home / 20,117,725.25-30,178,746.90-8,604,388.26

Finding the Fourth Proportional to 20,117,725.25, 30,178,746.90 and 8,604,388.26

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Solution

The fourth proportional to 20,117,725.25, 30,178,746.90 and 8,604,388.26 is: 12,907,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117,725.25 : 30,178,746.90 = 8,604,388.26 : x
  2. Step 2: Convert to fraction form
    20,117,725.25/30,178,746.90 = 8,604,388.26/x
  3. Step 3: Cross multiply
    20,117,725.25x = 30,178,746.90 × 8,604,388.26
  4. Step 4: Simplify right side
    20,117,725.25x = 259,669,655,527,871.38
  5. Step 5: Solve for x
    x = 259,669,655,527,871.38/20,117,725.25
  6. Step 6: Final answer
    x = 12,907,505.81

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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.