Home / 28,203,682,761.20-42,305,524,141.80-19,938,712,329.20

Finding the Fourth Proportional to 28,203,682,761.20, 42,305,524,141.80 and 19,938,712,329.20

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Solution

The fourth proportional to 28,203,682,761.20, 42,305,524,141.80 and 19,938,712,329.20 is: 29,908,068,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203,682,761.20 : 42,305,524,141.80 = 19,938,712,329.20 : x
  2. Step 2: Convert to fraction form
    28,203,682,761.20/42,305,524,141.80 = 19,938,712,329.20/x
  3. Step 3: Cross multiply
    28,203,682,761.20x = 42,305,524,141.80 × 19,938,712,329.20
  4. Step 4: Simplify right side
    28,203,682,761.20x = 843,517,675,799,376,035,840
  5. Step 5: Solve for x
    x = 843,517,675,799,376,035,840/28,203,682,761.20
  6. Step 6: Final answer
    x = 29,908,068,493.80

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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.