Home / 8,361,120.30-12,551,011.65-7,812,912.30

Finding the Fourth Proportional to 8,361,120.30, 12,551,011.65 and 7,812,912.30

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Solution

The fourth proportional to 8,361,120.30, 12,551,011.65 and 7,812,912.30 is: 11,728,087.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361,120.30 : 12,551,011.65 = 7,812,912.30 : x
  2. Step 2: Convert to fraction form
    8,361,120.30/12,551,011.65 = 7,812,912.30/x
  3. Step 3: Cross multiply
    8,361,120.30x = 12,551,011.65 × 7,812,912.30
  4. Step 4: Simplify right side
    8,361,120.30x = 98,059,953,297,728.30
  5. Step 5: Solve for x
    x = 98,059,953,297,728.30/8,361,120.30
  6. Step 6: Final answer
    x = 11,728,087.84

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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.