Home / 18,145,846.80-27,218,770.20-18,019,875.60

Finding the Fourth Proportional to 18,145,846.80, 27,218,770.20 and 18,019,875.60

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Solution

The fourth proportional to 18,145,846.80, 27,218,770.20 and 18,019,875.60 is: 27,029,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,846.80 : 27,218,770.20 = 18,019,875.60 : x
  2. Step 2: Convert to fraction form
    18,145,846.80/27,218,770.20 = 18,019,875.60/x
  3. Step 3: Cross multiply
    18,145,846.80x = 27,218,770.20 × 18,019,875.60
  4. Step 4: Simplify right side
    18,145,846.80x = 490,478,852,988,987.12
  5. Step 5: Solve for x
    x = 490,478,852,988,987.12/18,145,846.80
  6. Step 6: Final answer
    x = 27,029,813.40

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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.