Home / 20,105,331.84-27,754,994.64-12,376,998.72

Finding the Fourth Proportional to 20,105,331.84, 27,754,994.64 and 12,376,998.72

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Solution

The fourth proportional to 20,105,331.84, 27,754,994.64 and 12,376,998.72 is: 17,086,190.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105,331.84 : 27,754,994.64 = 12,376,998.72 : x
  2. Step 2: Convert to fraction form
    20,105,331.84/27,754,994.64 = 12,376,998.72/x
  3. Step 3: Cross multiply
    20,105,331.84x = 27,754,994.64 × 12,376,998.72
  4. Step 4: Simplify right side
    20,105,331.84x = 343,523,533,132,886.88
  5. Step 5: Solve for x
    x = 343,523,533,132,886.88/20,105,331.84
  6. Step 6: Final answer
    x = 17,086,190.66

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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.