Home / 870,911,361.93-1,201,857,149.60-479,770,785.93

Finding the Fourth Proportional to 870,911,361.93, 1,201,857,149.60 and 479,770,785.93

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Solution

The fourth proportional to 870,911,361.93, 1,201,857,149.60 and 479,770,785.93 is: 662,083,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,911,361.93 : 1,201,857,149.60 = 479,770,785.93 : x
  2. Step 2: Convert to fraction form
    870,911,361.93/1,201,857,149.60 = 479,770,785.93/x
  3. Step 3: Cross multiply
    870,911,361.93x = 1,201,857,149.60 × 479,770,785.93
  4. Step 4: Simplify right side
    870,911,361.93x = 576,615,949,239,181,568
  5. Step 5: Solve for x
    x = 576,615,949,239,181,568/870,911,361.93
  6. Step 6: Final answer
    x = 662,083,392.69

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Double scale
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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.