Home / 20,731,470.30-31,097,205.45-20,412,605.70

Finding the Fourth Proportional to 20,731,470.30, 31,097,205.45 and 20,412,605.70

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Solution

The fourth proportional to 20,731,470.30, 31,097,205.45 and 20,412,605.70 is: 30,618,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,470.30 : 31,097,205.45 = 20,412,605.70 : x
  2. Step 2: Convert to fraction form
    20,731,470.30/31,097,205.45 = 20,412,605.70/x
  3. Step 3: Cross multiply
    20,731,470.30x = 31,097,205.45 × 20,412,605.70
  4. Step 4: Simplify right side
    20,731,470.30x = 634,774,993,222,741
  5. Step 5: Solve for x
    x = 634,774,993,222,741/20,731,470.30
  6. Step 6: Final answer
    x = 30,618,908.55

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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.