Home / 81,015,878,398.38-121,476,712,264.78-30,655,202,535.60

Finding the Fourth Proportional to 81,015,878,398.38, 121,476,712,264.78 and 30,655,202,535.60

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Solution

The fourth proportional to 81,015,878,398.38, 121,476,712,264.78 and 30,655,202,535.60 is: 45,964,979,846.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,015,878,398.38 : 121,476,712,264.78 = 30,655,202,535.60 : x
  2. Step 2: Convert to fraction form
    81,015,878,398.38/121,476,712,264.78 = 30,655,202,535.60/x
  3. Step 3: Cross multiply
    81,015,878,398.38x = 121,476,712,264.78 × 30,655,202,535.60
  4. Step 4: Simplify right side
    81,015,878,398.38x = 3,723,893,217,835,635,179,520
  5. Step 5: Solve for x
    x = 3,723,893,217,835,635,179,520/81,015,878,398.38
  6. Step 6: Final answer
    x = 45,964,979,846.59

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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.