Home / 8,701,621.20-13,039,990.20-6,409,256.40

Finding the Fourth Proportional to 8,701,621.20, 13,039,990.20 and 6,409,256.40

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Solution

The fourth proportional to 8,701,621.20, 13,039,990.20 and 6,409,256.40 is: 9,604,720.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701,621.20 : 13,039,990.20 = 6,409,256.40 : x
  2. Step 2: Convert to fraction form
    8,701,621.20/13,039,990.20 = 6,409,256.40/x
  3. Step 3: Cross multiply
    8,701,621.20x = 13,039,990.20 × 6,409,256.40
  4. Step 4: Simplify right side
    8,701,621.20x = 83,576,640,645,287.28
  5. Step 5: Solve for x
    x = 83,576,640,645,287.28/8,701,621.20
  6. Step 6: Final answer
    x = 9,604,720.63

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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.