Home / 20,111,612.80-30,167,419.20-6,648,440.80

Finding the Fourth Proportional to 20,111,612.80, 30,167,419.20 and 6,648,440.80

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Solution

The fourth proportional to 20,111,612.80, 30,167,419.20 and 6,648,440.80 is: 9,972,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,612.80 : 30,167,419.20 = 6,648,440.80 : x
  2. Step 2: Convert to fraction form
    20,111,612.80/30,167,419.20 = 6,648,440.80/x
  3. Step 3: Cross multiply
    20,111,612.80x = 30,167,419.20 × 6,648,440.80
  4. Step 4: Simplify right side
    20,111,612.80x = 200,566,300,639,983.34
  5. Step 5: Solve for x
    x = 200,566,300,639,983.34/20,111,612.80
  6. Step 6: Final answer
    x = 9,972,661.20

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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.