Home / 20,783,768.80-31,091,672.40-17,975,077.60

Finding the Fourth Proportional to 20,783,768.80, 31,091,672.40 and 17,975,077.60

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Solution

The fourth proportional to 20,783,768.80, 31,091,672.40 and 17,975,077.60 is: 26,889,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,768.80 : 31,091,672.40 = 17,975,077.60 : x
  2. Step 2: Convert to fraction form
    20,783,768.80/31,091,672.40 = 17,975,077.60/x
  3. Step 3: Cross multiply
    20,783,768.80x = 31,091,672.40 × 17,975,077.60
  4. Step 4: Simplify right side
    20,783,768.80x = 558,875,224,103,778.25
  5. Step 5: Solve for x
    x = 558,875,224,103,778.25/20,783,768.80
  6. Step 6: Final answer
    x = 26,889,984.65

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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.