Home / 20,658,282.17-30,991,205.96-8,521,124.45

Finding the Fourth Proportional to 20,658,282.17, 30,991,205.96 and 8,521,124.45

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Solution

The fourth proportional to 20,658,282.17, 30,991,205.96 and 8,521,124.45 is: 12,783,246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658,282.17 : 30,991,205.96 = 8,521,124.45 : x
  2. Step 2: Convert to fraction form
    20,658,282.17/30,991,205.96 = 8,521,124.45/x
  3. Step 3: Cross multiply
    20,658,282.17x = 30,991,205.96 × 8,521,124.45
  4. Step 4: Simplify right side
    20,658,282.17x = 264,079,922,840,741.72
  5. Step 5: Solve for x
    x = 264,079,922,840,741.72/20,658,282.17
  6. Step 6: Final answer
    x = 12,783,246.96

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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.