Home / 20,212,890.90-30,319,336.35-8,076,353.10

Finding the Fourth Proportional to 20,212,890.90, 30,319,336.35 and 8,076,353.10

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Solution

The fourth proportional to 20,212,890.90, 30,319,336.35 and 8,076,353.10 is: 12,114,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,890.90 : 30,319,336.35 = 8,076,353.10 : x
  2. Step 2: Convert to fraction form
    20,212,890.90/30,319,336.35 = 8,076,353.10/x
  3. Step 3: Cross multiply
    20,212,890.90x = 30,319,336.35 × 8,076,353.10
  4. Step 4: Simplify right side
    20,212,890.90x = 244,869,666,120,265.19
  5. Step 5: Solve for x
    x = 244,869,666,120,265.19/20,212,890.90
  6. Step 6: Final answer
    x = 12,114,529.65

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1.5x scale

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.