Home / 20,238,820.98-30,358,674.36-8,113,994.70

Finding the Fourth Proportional to 20,238,820.98, 30,358,674.36 and 8,113,994.70

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Solution

The fourth proportional to 20,238,820.98, 30,358,674.36 and 8,113,994.70 is: 12,171,169.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238,820.98 : 30,358,674.36 = 8,113,994.70 : x
  2. Step 2: Convert to fraction form
    20,238,820.98/30,358,674.36 = 8,113,994.70/x
  3. Step 3: Cross multiply
    20,238,820.98x = 30,358,674.36 × 8,113,994.70
  4. Step 4: Simplify right side
    20,238,820.98x = 246,330,122,856,065.91
  5. Step 5: Solve for x
    x = 246,330,122,856,065.91/20,238,820.98
  6. Step 6: Final answer
    x = 12,171,169.61

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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.