Home / 1,278,877,276.32-1,764,893,435.76-783,744,364.32

Finding the Fourth Proportional to 1,278,877,276.32, 1,764,893,435.76 and 783,744,364.32

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Solution

The fourth proportional to 1,278,877,276.32, 1,764,893,435.76 and 783,744,364.32 is: 1,081,593,448.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,877,276.32 : 1,764,893,435.76 = 783,744,364.32 : x
  2. Step 2: Convert to fraction form
    1,278,877,276.32/1,764,893,435.76 = 783,744,364.32/x
  3. Step 3: Cross multiply
    1,278,877,276.32x = 1,764,893,435.76 × 783,744,364.32
  4. Step 4: Simplify right side
    1,278,877,276.32x = 1,383,225,283,902,262,016
  5. Step 5: Solve for x
    x = 1,383,225,283,902,262,016/1,278,877,276.32
  6. Step 6: Final answer
    x = 1,081,593,448.81

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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.