Home / 20,450,021.40-30,675,032.10-10,351,330.20

Finding the Fourth Proportional to 20,450,021.40, 30,675,032.10 and 10,351,330.20

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Solution

The fourth proportional to 20,450,021.40, 30,675,032.10 and 10,351,330.20 is: 15,526,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450,021.40 : 30,675,032.10 = 10,351,330.20 : x
  2. Step 2: Convert to fraction form
    20,450,021.40/30,675,032.10 = 10,351,330.20/x
  3. Step 3: Cross multiply
    20,450,021.40x = 30,675,032.10 × 10,351,330.20
  4. Step 4: Simplify right side
    20,450,021.40x = 317,527,386,162,699.44
  5. Step 5: Solve for x
    x = 317,527,386,162,699.44/20,450,021.40
  6. Step 6: Final answer
    x = 15,526,995.30

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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.