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Finding the Fourth Proportional to 20,161,692.70, 30,242,539.05 and 20,161,692.70

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Solution

The fourth proportional to 20,161,692.70, 30,242,539.05 and 20,161,692.70 is: 30,242,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,692.70 : 30,242,539.05 = 20,161,692.70 : x
  2. Step 2: Convert to fraction form
    20,161,692.70/30,242,539.05 = 20,161,692.70/x
  3. Step 3: Cross multiply
    20,161,692.70x = 30,242,539.05 × 20,161,692.70
  4. Step 4: Simplify right side
    20,161,692.70x = 609,740,778,793,849.88
  5. Step 5: Solve for x
    x = 609,740,778,793,849.88/20,161,692.70
  6. Step 6: Final answer
    x = 30,242,539.05

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1.5x scale

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.