Home / 12,654,687,981.71-18,986,251,635.89-8,417,085,403.50

Finding the Fourth Proportional to 12,654,687,981.71, 18,986,251,635.89 and 8,417,085,403.50

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Solution

The fourth proportional to 12,654,687,981.71, 18,986,251,635.89 and 8,417,085,403.50 is: 12,628,434,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654,687,981.71 : 18,986,251,635.89 = 8,417,085,403.50 : x
  2. Step 2: Convert to fraction form
    12,654,687,981.71/18,986,251,635.89 = 8,417,085,403.50/x
  3. Step 3: Cross multiply
    12,654,687,981.71x = 18,986,251,635.89 × 8,417,085,403.50
  4. Step 4: Simplify right side
    12,654,687,981.71x = 159,808,901,511,585,628,160
  5. Step 5: Solve for x
    x = 159,808,901,511,585,628,160/12,654,687,981.71
  6. Step 6: Final answer
    x = 12,628,434,754.19

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1.5x scale

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.