Home / 115,096,690,799.68-158,825,370,107.28-66,921,316,209.76

Finding the Fourth Proportional to 115,096,690,799.68, 158,825,370,107.28 and 66,921,316,209.76

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Solution

The fourth proportional to 115,096,690,799.68, 158,825,370,107.28 and 66,921,316,209.76 is: 92,346,728,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,096,690,799.68 : 158,825,370,107.28 = 66,921,316,209.76 : x
  2. Step 2: Convert to fraction form
    115,096,690,799.68/158,825,370,107.28 = 66,921,316,209.76/x
  3. Step 3: Cross multiply
    115,096,690,799.68x = 158,825,370,107.28 × 66,921,316,209.76
  4. Step 4: Simplify right side
    115,096,690,799.68x = 10,628,802,815,081,448,472,576
  5. Step 5: Solve for x
    x = 10,628,802,815,081,448,472,576/115,096,690,799.68
  6. Step 6: Final answer
    x = 92,346,728,139.91

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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.