Home / 20,740,838.60-31,111,257.90-17,381,606.60

Finding the Fourth Proportional to 20,740,838.60, 31,111,257.90 and 17,381,606.60

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Solution

The fourth proportional to 20,740,838.60, 31,111,257.90 and 17,381,606.60 is: 26,072,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740,838.60 : 31,111,257.90 = 17,381,606.60 : x
  2. Step 2: Convert to fraction form
    20,740,838.60/31,111,257.90 = 17,381,606.60/x
  3. Step 3: Cross multiply
    20,740,838.60x = 31,111,257.90 × 17,381,606.60
  4. Step 4: Simplify right side
    20,740,838.60x = 540,763,645,648,942.19
  5. Step 5: Solve for x
    x = 540,763,645,648,942.19/20,740,838.60
  6. Step 6: Final answer
    x = 26,072,409.90

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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.