Home / 81,015,878,394-121,476,712,258.21-30,655,202,531.22

Finding the Fourth Proportional to 81,015,878,394, 121,476,712,258.21 and 30,655,202,531.22

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Solution

The fourth proportional to 81,015,878,394, 121,476,712,258.21 and 30,655,202,531.22 is: 45,964,979,840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,015,878,394 : 121,476,712,258.21 = 30,655,202,531.22 : x
  2. Step 2: Convert to fraction form
    81,015,878,394/121,476,712,258.21 = 30,655,202,531.22/x
  3. Step 3: Cross multiply
    81,015,878,394x = 121,476,712,258.21 × 30,655,202,531.22
  4. Step 4: Simplify right side
    81,015,878,394x = 3,723,893,217,102,163,083,264
  5. Step 5: Solve for x
    x = 3,723,893,217,102,163,083,264/81,015,878,394
  6. Step 6: Final answer
    x = 45,964,979,840.03

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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.