Home / 8,210,035.40-12,315,053.10-7,874,112.20

Finding the Fourth Proportional to 8,210,035.40, 12,315,053.10 and 7,874,112.20

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Solution

The fourth proportional to 8,210,035.40, 12,315,053.10 and 7,874,112.20 is: 11,811,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210,035.40 : 12,315,053.10 = 7,874,112.20 : x
  2. Step 2: Convert to fraction form
    8,210,035.40/12,315,053.10 = 7,874,112.20/x
  3. Step 3: Cross multiply
    8,210,035.40x = 12,315,053.10 × 7,874,112.20
  4. Step 4: Simplify right side
    8,210,035.40x = 96,970,109,858,357.81
  5. Step 5: Solve for x
    x = 96,970,109,858,357.81/8,210,035.40
  6. Step 6: Final answer
    x = 11,811,168.30

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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.