Home / 20,129,608.40-30,135,430.20-17,770,312.40

Finding the Fourth Proportional to 20,129,608.40, 30,135,430.20 and 17,770,312.40

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Solution

The fourth proportional to 20,129,608.40, 30,135,430.20 and 17,770,312.40 is: 26,603,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,608.40 : 30,135,430.20 = 17,770,312.40 : x
  2. Step 2: Convert to fraction form
    20,129,608.40/30,135,430.20 = 17,770,312.40/x
  3. Step 3: Cross multiply
    20,129,608.40x = 30,135,430.20 × 17,770,312.40
  4. Step 4: Simplify right side
    20,129,608.40x = 535,516,008,962,394.44
  5. Step 5: Solve for x
    x = 535,516,008,962,394.44/20,129,608.40
  6. Step 6: Final answer
    x = 26,603,399.25

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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.