Home / 19,987,369.86-27,582,658.40-10,820,012.61

Finding the Fourth Proportional to 19,987,369.86, 27,582,658.40 and 10,820,012.61

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Solution

The fourth proportional to 19,987,369.86, 27,582,658.40 and 10,820,012.61 is: 14,931,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987,369.86 : 27,582,658.40 = 10,820,012.61 : x
  2. Step 2: Convert to fraction form
    19,987,369.86/27,582,658.40 = 10,820,012.61/x
  3. Step 3: Cross multiply
    19,987,369.86x = 27,582,658.40 × 10,820,012.61
  4. Step 4: Simplify right side
    19,987,369.86x = 298,444,711,732,372.44
  5. Step 5: Solve for x
    x = 298,444,711,732,372.44/19,987,369.86
  6. Step 6: Final answer
    x = 14,931,665.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.