Home / 20,409,933.40-30,572,909.70-10,318,240.60

Finding the Fourth Proportional to 20,409,933.40, 30,572,909.70 and 10,318,240.60

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Solution

The fourth proportional to 20,409,933.40, 30,572,909.70 and 10,318,240.60 is: 15,456,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,933.40 : 30,572,909.70 = 10,318,240.60 : x
  2. Step 2: Convert to fraction form
    20,409,933.40/30,572,909.70 = 10,318,240.60/x
  3. Step 3: Cross multiply
    20,409,933.40x = 30,572,909.70 × 10,318,240.60
  4. Step 4: Simplify right side
    20,409,933.40x = 315,458,638,126,673.81
  5. Step 5: Solve for x
    x = 315,458,638,126,673.81/20,409,933.40
  6. Step 6: Final answer
    x = 15,456,132.66

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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.