Home / 8,138,102.03-12,255,869.22-7,411,688.61

Finding the Fourth Proportional to 8,138,102.03, 12,255,869.22 and 7,411,688.61

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Solution

The fourth proportional to 8,138,102.03, 12,255,869.22 and 7,411,688.61 is: 11,161,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138,102.03 : 12,255,869.22 = 7,411,688.61 : x
  2. Step 2: Convert to fraction form
    8,138,102.03/12,255,869.22 = 7,411,688.61/x
  3. Step 3: Cross multiply
    8,138,102.03x = 12,255,869.22 × 7,411,688.61
  4. Step 4: Simplify right side
    8,138,102.03x = 90,836,686,303,523.59
  5. Step 5: Solve for x
    x = 90,836,686,303,523.59/8,138,102.03
  6. Step 6: Final answer
    x = 11,161,900.65

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.