Home / 20,515,786.60-30,773,679.90-19,571,002.60

Finding the Fourth Proportional to 20,515,786.60, 30,773,679.90 and 19,571,002.60

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Solution

The fourth proportional to 20,515,786.60, 30,773,679.90 and 19,571,002.60 is: 29,356,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,786.60 : 30,773,679.90 = 19,571,002.60 : x
  2. Step 2: Convert to fraction form
    20,515,786.60/30,773,679.90 = 19,571,002.60/x
  3. Step 3: Cross multiply
    20,515,786.60x = 30,773,679.90 × 19,571,002.60
  4. Step 4: Simplify right side
    20,515,786.60x = 602,271,769,334,467.75
  5. Step 5: Solve for x
    x = 602,271,769,334,467.75/20,515,786.60
  6. Step 6: Final answer
    x = 29,356,503.90

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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.