Home / 20,819,047.72-31,237,503.20-8,048,521.48

Finding the Fourth Proportional to 20,819,047.72, 31,237,503.20 and 8,048,521.48

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Solution

The fourth proportional to 20,819,047.72, 31,237,503.20 and 8,048,521.48 is: 12,076,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,047.72 : 31,237,503.20 = 8,048,521.48 : x
  2. Step 2: Convert to fraction form
    20,819,047.72/31,237,503.20 = 8,048,521.48/x
  3. Step 3: Cross multiply
    20,819,047.72x = 31,237,503.20 × 8,048,521.48
  4. Step 4: Simplify right side
    20,819,047.72x = 251,415,715,486,768.75
  5. Step 5: Solve for x
    x = 251,415,715,486,768.75/20,819,047.72
  6. Step 6: Final answer
    x = 12,076,235.13

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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.