Home / 8,210,032.40-12,315,048.60-7,874,109.20

Finding the Fourth Proportional to 8,210,032.40, 12,315,048.60 and 7,874,109.20

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Solution

The fourth proportional to 8,210,032.40, 12,315,048.60 and 7,874,109.20 is: 11,811,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210,032.40 : 12,315,048.60 = 7,874,109.20 : x
  2. Step 2: Convert to fraction form
    8,210,032.40/12,315,048.60 = 7,874,109.20/x
  3. Step 3: Cross multiply
    8,210,032.40x = 12,315,048.60 × 7,874,109.20
  4. Step 4: Simplify right side
    8,210,032.40x = 96,970,037,479,707.12
  5. Step 5: Solve for x
    x = 96,970,037,479,707.12/8,210,032.40
  6. Step 6: Final answer
    x = 11,811,163.80

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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.