Home / 10,115,008.86-15,156,533.61-8,212,454.94

Finding the Fourth Proportional to 10,115,008.86, 15,156,533.61 and 8,212,454.94

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Solution

The fourth proportional to 10,115,008.86, 15,156,533.61 and 8,212,454.94 is: 12,305,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115,008.86 : 15,156,533.61 = 8,212,454.94 : x
  2. Step 2: Convert to fraction form
    10,115,008.86/15,156,533.61 = 8,212,454.94/x
  3. Step 3: Cross multiply
    10,115,008.86x = 15,156,533.61 × 8,212,454.94
  4. Step 4: Simplify right side
    10,115,008.86x = 124,472,349,318,720.53
  5. Step 5: Solve for x
    x = 124,472,349,318,720.53/10,115,008.86
  6. Step 6: Final answer
    x = 12,305,708.38

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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.