Home / 12,294,788.20-18,429,740.70-7,243,498.60

Finding the Fourth Proportional to 12,294,788.20, 18,429,740.70 and 7,243,498.60

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Solution

The fourth proportional to 12,294,788.20, 18,429,740.70 and 7,243,498.60 is: 10,857,917.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,294,788.20 : 18,429,740.70 = 7,243,498.60 : x
  2. Step 2: Convert to fraction form
    12,294,788.20/18,429,740.70 = 7,243,498.60/x
  3. Step 3: Cross multiply
    12,294,788.20x = 18,429,740.70 × 7,243,498.60
  4. Step 4: Simplify right side
    12,294,788.20x = 133,495,800,958,813
  5. Step 5: Solve for x
    x = 133,495,800,958,813/12,294,788.20
  6. Step 6: Final answer
    x = 10,857,917.91

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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.