Home / 20,647,491,731,742-30,955,969,112,559-12,486,617,703,310

Finding the Fourth Proportional to 20,647,491,731,742, 30,955,969,112,559 and 12,486,617,703,310

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Solution

The fourth proportional to 20,647,491,731,742, 30,955,969,112,559 and 12,486,617,703,310 is: 18,720,692,903,814.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,491,731,742 : 30,955,969,112,559 = 12,486,617,703,310 : x
  2. Step 2: Convert to fraction form
    20,647,491,731,742/30,955,969,112,559 = 12,486,617,703,310/x
  3. Step 3: Cross multiply
    20,647,491,731,742x = 30,955,969,112,559 × 12,486,617,703,310
  4. Step 4: Simplify right side
    20,647,491,731,742x = 386,535,351,943,996,756,755,218,432
  5. Step 5: Solve for x
    x = 386,535,351,943,996,756,755,218,432/20,647,491,731,742
  6. Step 6: Final answer
    x = 18,720,692,903,814.78

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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.