Home / 207,121,202,127.64-285,785,804,677.42-115,655,679,632.01

Finding the Fourth Proportional to 207,121,202,127.64, 285,785,804,677.42 and 115,655,679,632.01

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Solution

The fourth proportional to 207,121,202,127.64, 285,785,804,677.42 and 115,655,679,632.01 is: 159,581,689,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,121,202,127.64 : 285,785,804,677.42 = 115,655,679,632.01 : x
  2. Step 2: Convert to fraction form
    207,121,202,127.64/285,785,804,677.42 = 115,655,679,632.01/x
  3. Step 3: Cross multiply
    207,121,202,127.64x = 285,785,804,677.42 × 115,655,679,632.01
  4. Step 4: Simplify right side
    207,121,202,127.64x = 33,052,751,469,147,867,578,368
  5. Step 5: Solve for x
    x = 33,052,751,469,147,867,578,368/207,121,202,127.64
  6. Step 6: Final answer
    x = 159,581,689,994.15

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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.