Home / 20,108,257.80-30,162,386.70-6,645,085.80

Finding the Fourth Proportional to 20,108,257.80, 30,162,386.70 and 6,645,085.80

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Solution

The fourth proportional to 20,108,257.80, 30,162,386.70 and 6,645,085.80 is: 9,967,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108,257.80 : 30,162,386.70 = 6,645,085.80 : x
  2. Step 2: Convert to fraction form
    20,108,257.80/30,162,386.70 = 6,645,085.80/x
  3. Step 3: Cross multiply
    20,108,257.80x = 30,162,386.70 × 6,645,085.80
  4. Step 4: Simplify right side
    20,108,257.80x = 200,431,647,554,278.84
  5. Step 5: Solve for x
    x = 200,431,647,554,278.84/20,108,257.80
  6. Step 6: Final answer
    x = 9,967,628.70

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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.