Home / 81,015,877,982.82-121,476,711,642.32-30,655,202,119.36

Finding the Fourth Proportional to 81,015,877,982.82, 121,476,711,642.32 and 30,655,202,119.36

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Solution

The fourth proportional to 81,015,877,982.82, 121,476,711,642.32 and 30,655,202,119.36 is: 45,964,979,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,015,877,982.82 : 121,476,711,642.32 = 30,655,202,119.36 : x
  2. Step 2: Convert to fraction form
    81,015,877,982.82/121,476,711,642.32 = 30,655,202,119.36/x
  3. Step 3: Cross multiply
    81,015,877,982.82x = 121,476,711,642.32 × 30,655,202,119.36
  4. Step 4: Simplify right side
    81,015,877,982.82x = 3,723,893,148,190,532,173,824
  5. Step 5: Solve for x
    x = 3,723,893,148,190,532,173,824/81,015,877,982.82
  6. Step 6: Final answer
    x = 45,964,979,222.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.