Home / 18,711,213.80-28,066,820.70-13,672,365.80

Finding the Fourth Proportional to 18,711,213.80, 28,066,820.70 and 13,672,365.80

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Solution

The fourth proportional to 18,711,213.80, 28,066,820.70 and 13,672,365.80 is: 20,508,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,213.80 : 28,066,820.70 = 13,672,365.80 : x
  2. Step 2: Convert to fraction form
    18,711,213.80/28,066,820.70 = 13,672,365.80/x
  3. Step 3: Cross multiply
    18,711,213.80x = 28,066,820.70 × 13,672,365.80
  4. Step 4: Simplify right side
    18,711,213.80x = 383,739,839,453,412.06
  5. Step 5: Solve for x
    x = 383,739,839,453,412.06/18,711,213.80
  6. Step 6: Final answer
    x = 20,508,548.70

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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.