Home / 8,300,926.70-12,445,485.15-3,181,378.40

Finding the Fourth Proportional to 8,300,926.70, 12,445,485.15 and 3,181,378.40

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Solution

The fourth proportional to 8,300,926.70, 12,445,485.15 and 3,181,378.40 is: 4,769,804.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300,926.70 : 12,445,485.15 = 3,181,378.40 : x
  2. Step 2: Convert to fraction form
    8,300,926.70/12,445,485.15 = 3,181,378.40/x
  3. Step 3: Cross multiply
    8,300,926.70x = 12,445,485.15 × 3,181,378.40
  4. Step 4: Simplify right side
    8,300,926.70x = 39,593,797,633,730.76
  5. Step 5: Solve for x
    x = 39,593,797,633,730.76/8,300,926.70
  6. Step 6: Final answer
    x = 4,769,804.51

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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.