Home / 7,820,728.47-11,737,846.43-5,426,254.61

Finding the Fourth Proportional to 7,820,728.47, 11,737,846.43 and 5,426,254.61

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Solution

The fourth proportional to 7,820,728.47, 11,737,846.43 and 5,426,254.61 is: 8,144,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820,728.47 : 11,737,846.43 = 5,426,254.61 : x
  2. Step 2: Convert to fraction form
    7,820,728.47/11,737,846.43 = 5,426,254.61/x
  3. Step 3: Cross multiply
    7,820,728.47x = 11,737,846.43 × 5,426,254.61
  4. Step 4: Simplify right side
    7,820,728.47x = 63,692,543,302,259.55
  5. Step 5: Solve for x
    x = 63,692,543,302,259.55/7,820,728.47
  6. Step 6: Final answer
    x = 8,144,067.85

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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.