Home / 21,784,900.20-32,678,579.10-6,639,325.80

Finding the Fourth Proportional to 21,784,900.20, 32,678,579.10 and 6,639,325.80

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Solution

The fourth proportional to 21,784,900.20, 32,678,579.10 and 6,639,325.80 is: 9,959,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,784,900.20 : 32,678,579.10 = 6,639,325.80 : x
  2. Step 2: Convert to fraction form
    21,784,900.20/32,678,579.10 = 6,639,325.80/x
  3. Step 3: Cross multiply
    21,784,900.20x = 32,678,579.10 × 6,639,325.80
  4. Step 4: Simplify right side
    21,784,900.20x = 216,963,733,325,970.78
  5. Step 5: Solve for x
    x = 216,963,733,325,970.78/21,784,900.20
  6. Step 6: Final answer
    x = 9,959,363.20

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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.