Home / 81,505,509,331.90-122,314,109,852.61-28,446,542,443.49

Finding the Fourth Proportional to 81,505,509,331.90, 122,314,109,852.61 and 28,446,542,443.49

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Solution

The fourth proportional to 81,505,509,331.90, 122,314,109,852.61 and 28,446,542,443.49 is: 42,689,304,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505,509,331.90 : 122,314,109,852.61 = 28,446,542,443.49 : x
  2. Step 2: Convert to fraction form
    81,505,509,331.90/122,314,109,852.61 = 28,446,542,443.49/x
  3. Step 3: Cross multiply
    81,505,509,331.90x = 122,314,109,852.61 × 28,446,542,443.49
  4. Step 4: Simplify right side
    81,505,509,331.90x = 3,479,413,517,359,479,521,280
  5. Step 5: Solve for x
    x = 3,479,413,517,359,479,521,280/81,505,509,331.90
  6. Step 6: Final answer
    x = 42,689,304,635.72

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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.