Home / 20,208,689.55-30,313,034.33-9,978,450.30

Finding the Fourth Proportional to 20,208,689.55, 30,313,034.33 and 9,978,450.30

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Solution

The fourth proportional to 20,208,689.55, 30,313,034.33 and 9,978,450.30 is: 14,967,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208,689.55 : 30,313,034.33 = 9,978,450.30 : x
  2. Step 2: Convert to fraction form
    20,208,689.55/30,313,034.33 = 9,978,450.30/x
  3. Step 3: Cross multiply
    20,208,689.55x = 30,313,034.33 × 9,978,450.30
  4. Step 4: Simplify right side
    20,208,689.55x = 302,477,106,454,206.56
  5. Step 5: Solve for x
    x = 302,477,106,454,206.56/20,208,689.55
  6. Step 6: Final answer
    x = 14,967,675.45

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Similar ratio
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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.