Home / 20,557,503.40-30,836,173.08-9,189,980.38

Finding the Fourth Proportional to 20,557,503.40, 30,836,173.08 and 9,189,980.38

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Solution

The fourth proportional to 20,557,503.40, 30,836,173.08 and 9,189,980.38 is: 13,784,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557,503.40 : 30,836,173.08 = 9,189,980.38 : x
  2. Step 2: Convert to fraction form
    20,557,503.40/30,836,173.08 = 9,189,980.38/x
  3. Step 3: Cross multiply
    20,557,503.40x = 30,836,173.08 × 9,189,980.38
  4. Step 4: Simplify right side
    20,557,503.40x = 283,383,825,599,484.19
  5. Step 5: Solve for x
    x = 283,383,825,599,484.19/20,557,503.40
  6. Step 6: Final answer
    x = 13,784,933.90

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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.