Home / 12,604,899.60-18,907,349.40-7,821,930.60

Finding the Fourth Proportional to 12,604,899.60, 18,907,349.40 and 7,821,930.60

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Solution

The fourth proportional to 12,604,899.60, 18,907,349.40 and 7,821,930.60 is: 11,732,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604,899.60 : 18,907,349.40 = 7,821,930.60 : x
  2. Step 2: Convert to fraction form
    12,604,899.60/18,907,349.40 = 7,821,930.60/x
  3. Step 3: Cross multiply
    12,604,899.60x = 18,907,349.40 × 7,821,930.60
  4. Step 4: Simplify right side
    12,604,899.60x = 147,891,974,836,751.62
  5. Step 5: Solve for x
    x = 147,891,974,836,751.62/12,604,899.60
  6. Step 6: Final answer
    x = 11,732,895.90

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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.