Home / 207,121,202,123.13-285,785,804,671.23-115,655,679,627.51

Finding the Fourth Proportional to 207,121,202,123.13, 285,785,804,671.23 and 115,655,679,627.51

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Solution

The fourth proportional to 207,121,202,123.13, 285,785,804,671.23 and 115,655,679,627.51 is: 159,581,689,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,121,202,123.13 : 285,785,804,671.23 = 115,655,679,627.51 : x
  2. Step 2: Convert to fraction form
    207,121,202,123.13/285,785,804,671.23 = 115,655,679,627.51/x
  3. Step 3: Cross multiply
    207,121,202,123.13x = 285,785,804,671.23 × 115,655,679,627.51
  4. Step 4: Simplify right side
    207,121,202,123.13x = 33,052,751,467,145,922,084,864
  5. Step 5: Solve for x
    x = 33,052,751,467,145,922,084,864/207,121,202,123.13
  6. Step 6: Final answer
    x = 159,581,689,987.96

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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.