Home / 81,872,061,538.40-122,810,594,192.14-28,088,442,694.40

Finding the Fourth Proportional to 81,872,061,538.40, 122,810,594,192.14 and 28,088,442,694.40

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Solution

The fourth proportional to 81,872,061,538.40, 122,810,594,192.14 and 28,088,442,694.40 is: 42,133,522,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,872,061,538.40 : 122,810,594,192.14 = 28,088,442,694.40 : x
  2. Step 2: Convert to fraction form
    81,872,061,538.40/122,810,594,192.14 = 28,088,442,694.40/x
  3. Step 3: Cross multiply
    81,872,061,538.40x = 122,810,594,192.14 × 28,088,442,694.40
  4. Step 4: Simplify right side
    81,872,061,538.40x = 3,449,558,337,230,892,171,264
  5. Step 5: Solve for x
    x = 3,449,558,337,230,892,171,264/81,872,061,538.40
  6. Step 6: Final answer
    x = 42,133,522,381.30

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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.