Home / 157,516,783,489.92-217,373,171,821.44-86,231,413,514.88

Finding the Fourth Proportional to 157,516,783,489.92, 217,373,171,821.44 and 86,231,413,514.88

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Solution

The fourth proportional to 157,516,783,489.92, 217,373,171,821.44 and 86,231,413,514.88 is: 118,999,356,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,516,783,489.92 : 217,373,171,821.44 = 86,231,413,514.88 : x
  2. Step 2: Convert to fraction form
    157,516,783,489.92/217,373,171,821.44 = 86,231,413,514.88/x
  3. Step 3: Cross multiply
    157,516,783,489.92x = 217,373,171,821.44 × 86,231,413,514.88
  4. Step 4: Simplify right side
    157,516,783,489.92x = 18,744,395,866,375,653,949,440
  5. Step 5: Solve for x
    x = 18,744,395,866,375,653,949,440/157,516,783,489.92
  6. Step 6: Final answer
    x = 118,999,356,456.36

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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.