Home / 76,832,787.42-115,240,691.52-19,325,080.53

Finding the Fourth Proportional to 76,832,787.42, 115,240,691.52 and 19,325,080.53

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Solution

The fourth proportional to 76,832,787.42, 115,240,691.52 and 19,325,080.53 is: 28,985,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,832,787.42 : 115,240,691.52 = 19,325,080.53 : x
  2. Step 2: Convert to fraction form
    76,832,787.42/115,240,691.52 = 19,325,080.53/x
  3. Step 3: Cross multiply
    76,832,787.42x = 115,240,691.52 × 19,325,080.53
  4. Step 4: Simplify right side
    76,832,787.42x = 2,227,035,643,956,888.25
  5. Step 5: Solve for x
    x = 2,227,035,643,956,888.25/76,832,787.42
  6. Step 6: Final answer
    x = 28,985,485.48

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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.