Home / 212,944,510.80-319,473,356.04-67,380,658.20

Finding the Fourth Proportional to 212,944,510.80, 319,473,356.04 and 67,380,658.20

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Solution

The fourth proportional to 212,944,510.80, 319,473,356.04 and 67,380,658.20 is: 101,088,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,944,510.80 : 319,473,356.04 = 67,380,658.20 : x
  2. Step 2: Convert to fraction form
    212,944,510.80/319,473,356.04 = 67,380,658.20/x
  3. Step 3: Cross multiply
    212,944,510.80x = 319,473,356.04 × 67,380,658.20
  4. Step 4: Simplify right side
    212,944,510.80x = 21,526,325,007,338,148
  5. Step 5: Solve for x
    x = 21,526,325,007,338,148/212,944,510.80
  6. Step 6: Final answer
    x = 101,088,893.66

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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.