Home / 20,308,442.04-30,385,768.14-12,529,195.56

Finding the Fourth Proportional to 20,308,442.04, 30,385,768.14 and 12,529,195.56

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Solution

The fourth proportional to 20,308,442.04, 30,385,768.14 and 12,529,195.56 is: 18,746,353.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308,442.04 : 30,385,768.14 = 12,529,195.56 : x
  2. Step 2: Convert to fraction form
    20,308,442.04/30,385,768.14 = 12,529,195.56/x
  3. Step 3: Cross multiply
    20,308,442.04x = 30,385,768.14 × 12,529,195.56
  4. Step 4: Simplify right side
    20,308,442.04x = 380,709,231,266,877.50
  5. Step 5: Solve for x
    x = 380,709,231,266,877.50/20,308,442.04
  6. Step 6: Final answer
    x = 18,746,353.39

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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.