Home / 12,161,764.80-18,242,647.20-11,169,741.60

Finding the Fourth Proportional to 12,161,764.80, 18,242,647.20 and 11,169,741.60

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Solution

The fourth proportional to 12,161,764.80, 18,242,647.20 and 11,169,741.60 is: 16,754,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161,764.80 : 18,242,647.20 = 11,169,741.60 : x
  2. Step 2: Convert to fraction form
    12,161,764.80/18,242,647.20 = 11,169,741.60/x
  3. Step 3: Cross multiply
    12,161,764.80x = 18,242,647.20 × 11,169,741.60
  4. Step 4: Simplify right side
    12,161,764.80x = 203,765,655,323,963.50
  5. Step 5: Solve for x
    x = 203,765,655,323,963.50/12,161,764.80
  6. Step 6: Final answer
    x = 16,754,612.40

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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.