Home / 8,653,812.40-12,964,972.20-7,047,679.60

Finding the Fourth Proportional to 8,653,812.40, 12,964,972.20 and 7,047,679.60

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Solution

The fourth proportional to 8,653,812.40, 12,964,972.20 and 7,047,679.60 is: 10,558,695.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653,812.40 : 12,964,972.20 = 7,047,679.60 : x
  2. Step 2: Convert to fraction form
    8,653,812.40/12,964,972.20 = 7,047,679.60/x
  3. Step 3: Cross multiply
    8,653,812.40x = 12,964,972.20 × 7,047,679.60
  4. Step 4: Simplify right side
    8,653,812.40x = 91,372,970,088,507.11
  5. Step 5: Solve for x
    x = 91,372,970,088,507.11/8,653,812.40
  6. Step 6: Final answer
    x = 10,558,695.50

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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.