Home / 81,872,061,539.15-122,810,594,193.27-28,088,442,695.15

Finding the Fourth Proportional to 81,872,061,539.15, 122,810,594,193.27 and 28,088,442,695.15

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Solution

The fourth proportional to 81,872,061,539.15, 122,810,594,193.27 and 28,088,442,695.15 is: 42,133,522,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,872,061,539.15 : 122,810,594,193.27 = 28,088,442,695.15 : x
  2. Step 2: Convert to fraction form
    81,872,061,539.15/122,810,594,193.27 = 28,088,442,695.15/x
  3. Step 3: Cross multiply
    81,872,061,539.15x = 122,810,594,193.27 × 28,088,442,695.15
  4. Step 4: Simplify right side
    81,872,061,539.15x = 3,449,558,337,355,354,472,448
  5. Step 5: Solve for x
    x = 3,449,558,337,355,354,472,448/81,872,061,539.15
  6. Step 6: Final answer
    x = 42,133,522,382.43

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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.