Home / 20,437,417.50-30,621,423.57-12,333,364.61

Finding the Fourth Proportional to 20,437,417.50, 30,621,423.57 and 12,333,364.61

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Solution

The fourth proportional to 20,437,417.50, 30,621,423.57 and 12,333,364.61 is: 18,479,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437,417.50 : 30,621,423.57 = 12,333,364.61 : x
  2. Step 2: Convert to fraction form
    20,437,417.50/30,621,423.57 = 12,333,364.61/x
  3. Step 3: Cross multiply
    20,437,417.50x = 30,621,423.57 × 12,333,364.61
  4. Step 4: Simplify right side
    20,437,417.50x = 377,665,181,738,946.12
  5. Step 5: Solve for x
    x = 377,665,181,738,946.12/20,437,417.50
  6. Step 6: Final answer
    x = 18,479,104.90

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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.