Home / 870,911,359.43-1,201,857,146.15-479,770,783.43

Finding the Fourth Proportional to 870,911,359.43, 1,201,857,146.15 and 479,770,783.43

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Solution

The fourth proportional to 870,911,359.43, 1,201,857,146.15 and 479,770,783.43 is: 662,083,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,911,359.43 : 1,201,857,146.15 = 479,770,783.43 : x
  2. Step 2: Convert to fraction form
    870,911,359.43/1,201,857,146.15 = 479,770,783.43/x
  3. Step 3: Cross multiply
    870,911,359.43x = 1,201,857,146.15 × 479,770,783.43
  4. Step 4: Simplify right side
    870,911,359.43x = 576,615,944,570,921,344
  5. Step 5: Solve for x
    x = 576,615,944,570,921,344/870,911,359.43
  6. Step 6: Final answer
    x = 662,083,389.23

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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.