Home / 13,325,909.40-18,380,242.98-9,197,501.40

Finding the Fourth Proportional to 13,325,909.40, 18,380,242.98 and 9,197,501.40

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Solution

The fourth proportional to 13,325,909.40, 18,380,242.98 and 9,197,501.40 is: 12,685,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325,909.40 : 18,380,242.98 = 9,197,501.40 : x
  2. Step 2: Convert to fraction form
    13,325,909.40/18,380,242.98 = 9,197,501.40/x
  3. Step 3: Cross multiply
    13,325,909.40x = 18,380,242.98 × 9,197,501.40
  4. Step 4: Simplify right side
    13,325,909.40x = 169,052,310,540,890.19
  5. Step 5: Solve for x
    x = 169,052,310,540,890.19/13,325,909.40
  6. Step 6: Final answer
    x = 12,685,986.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.