Home / 12,913,381.22-17,820,923.10-8,021,282.54

Finding the Fourth Proportional to 12,913,381.22, 17,820,923.10 and 8,021,282.54

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Solution

The fourth proportional to 12,913,381.22, 17,820,923.10 and 8,021,282.54 is: 11,069,653.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,381.22 : 17,820,923.10 = 8,021,282.54 : x
  2. Step 2: Convert to fraction form
    12,913,381.22/17,820,923.10 = 8,021,282.54/x
  3. Step 3: Cross multiply
    12,913,381.22x = 17,820,923.10 × 8,021,282.54
  4. Step 4: Simplify right side
    12,913,381.22x = 142,946,659,308,712.69
  5. Step 5: Solve for x
    x = 142,946,659,308,712.69/12,913,381.22
  6. Step 6: Final answer
    x = 11,069,653.79

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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.