Home / 20,801,430.40-31,202,145.60-18,147,222.40

Finding the Fourth Proportional to 20,801,430.40, 31,202,145.60 and 18,147,222.40

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Solution

The fourth proportional to 20,801,430.40, 31,202,145.60 and 18,147,222.40 is: 27,220,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,430.40 : 31,202,145.60 = 18,147,222.40 : x
  2. Step 2: Convert to fraction form
    20,801,430.40/31,202,145.60 = 18,147,222.40/x
  3. Step 3: Cross multiply
    20,801,430.40x = 31,202,145.60 × 18,147,222.40
  4. Step 4: Simplify right side
    20,801,430.40x = 566,232,275,560,381.38
  5. Step 5: Solve for x
    x = 566,232,275,560,381.38/20,801,430.40
  6. Step 6: Final answer
    x = 27,220,833.60

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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.