Home / 8,147,309.40-12,220,964.10-7,249,764.60

Finding the Fourth Proportional to 8,147,309.40, 12,220,964.10 and 7,249,764.60

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Solution

The fourth proportional to 8,147,309.40, 12,220,964.10 and 7,249,764.60 is: 10,874,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147,309.40 : 12,220,964.10 = 7,249,764.60 : x
  2. Step 2: Convert to fraction form
    8,147,309.40/12,220,964.10 = 7,249,764.60/x
  3. Step 3: Cross multiply
    8,147,309.40x = 12,220,964.10 × 7,249,764.60
  4. Step 4: Simplify right side
    8,147,309.40x = 88,599,112,910,050.86
  5. Step 5: Solve for x
    x = 88,599,112,910,050.86/8,147,309.40
  6. Step 6: Final answer
    x = 10,874,646.90

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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.