Home / 12,457,069.20-18,683,299.80-3,479,763.60

Finding the Fourth Proportional to 12,457,069.20, 18,683,299.80 and 3,479,763.60

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Solution

The fourth proportional to 12,457,069.20, 18,683,299.80 and 3,479,763.60 is: 5,219,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,069.20 : 18,683,299.80 = 3,479,763.60 : x
  2. Step 2: Convert to fraction form
    12,457,069.20/18,683,299.80 = 3,479,763.60/x
  3. Step 3: Cross multiply
    12,457,069.20x = 18,683,299.80 × 3,479,763.60
  4. Step 4: Simplify right side
    12,457,069.20x = 65,013,466,571,927.28
  5. Step 5: Solve for x
    x = 65,013,466,571,927.28/12,457,069.20
  6. Step 6: Final answer
    x = 5,219,001.80

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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.