Home / 20,726,077.80-31,089,116.70-15,085,885.80

Finding the Fourth Proportional to 20,726,077.80, 31,089,116.70 and 15,085,885.80

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Solution

The fourth proportional to 20,726,077.80, 31,089,116.70 and 15,085,885.80 is: 22,628,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726,077.80 : 31,089,116.70 = 15,085,885.80 : x
  2. Step 2: Convert to fraction form
    20,726,077.80/31,089,116.70 = 15,085,885.80/x
  3. Step 3: Cross multiply
    20,726,077.80x = 31,089,116.70 × 15,085,885.80
  4. Step 4: Simplify right side
    20,726,077.80x = 469,006,864,159,072.88
  5. Step 5: Solve for x
    x = 469,006,864,159,072.88/20,726,077.80
  6. Step 6: Final answer
    x = 22,628,828.70

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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.