Home / 21,711,235.95-29,960,143.11-11,921,611.59

Finding the Fourth Proportional to 21,711,235.95, 29,960,143.11 and 11,921,611.59

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Solution

The fourth proportional to 21,711,235.95, 29,960,143.11 and 11,921,611.59 is: 16,451,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711,235.95 : 29,960,143.11 = 11,921,611.59 : x
  2. Step 2: Convert to fraction form
    21,711,235.95/29,960,143.11 = 11,921,611.59/x
  3. Step 3: Cross multiply
    21,711,235.95x = 29,960,143.11 × 11,921,611.59
  4. Step 4: Simplify right side
    21,711,235.95x = 357,173,189,338,234.62
  5. Step 5: Solve for x
    x = 357,173,189,338,234.62/21,711,235.95
  6. Step 6: Final answer
    x = 16,451,075.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.