Home / 20,731,484.80-31,097,227.20-20,412,620.20

Finding the Fourth Proportional to 20,731,484.80, 31,097,227.20 and 20,412,620.20

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Solution

The fourth proportional to 20,731,484.80, 31,097,227.20 and 20,412,620.20 is: 30,618,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,484.80 : 31,097,227.20 = 20,412,620.20 : x
  2. Step 2: Convert to fraction form
    20,731,484.80/31,097,227.20 = 20,412,620.20/x
  3. Step 3: Cross multiply
    20,731,484.80x = 31,097,227.20 × 20,412,620.20
  4. Step 4: Simplify right side
    20,731,484.80x = 634,775,888,106,709.38
  5. Step 5: Solve for x
    x = 634,775,888,106,709.38/20,731,484.80
  6. Step 6: Final answer
    x = 30,618,930.30

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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.