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Finding the Fourth Proportional to 983,066,961.92, 1,356,955,708.27 and 782,491,755.55

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Solution

The fourth proportional to 983,066,961.92, 1,356,955,708.27 and 782,491,755.55 is: 1,080,095,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,066,961.92 : 1,356,955,708.27 = 782,491,755.55 : x
  2. Step 2: Convert to fraction form
    983,066,961.92/1,356,955,708.27 = 782,491,755.55/x
  3. Step 3: Cross multiply
    983,066,961.92x = 1,356,955,708.27 × 782,491,755.55
  4. Step 4: Simplify right side
    983,066,961.92x = 1,061,806,654,365,410,944
  5. Step 5: Solve for x
    x = 1,061,806,654,365,410,944/983,066,961.92
  6. Step 6: Final answer
    x = 1,080,095,960.40

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1.5x scale

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.