Home / 12,909,511.18-17,815,517.36-7,108,500.67

Finding the Fourth Proportional to 12,909,511.18, 17,815,517.36 and 7,108,500.67

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Solution

The fourth proportional to 12,909,511.18, 17,815,517.36 and 7,108,500.67 is: 9,809,946.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909,511.18 : 17,815,517.36 = 7,108,500.67 : x
  2. Step 2: Convert to fraction form
    12,909,511.18/17,815,517.36 = 7,108,500.67/x
  3. Step 3: Cross multiply
    12,909,511.18x = 17,815,517.36 × 7,108,500.67
  4. Step 4: Simplify right side
    12,909,511.18x = 126,641,617,036,532.22
  5. Step 5: Solve for x
    x = 126,641,617,036,532.22/12,909,511.18
  6. Step 6: Final answer
    x = 9,809,946.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.