Home / 20,212,885.40-30,319,328.10-8,076,347.60

Finding the Fourth Proportional to 20,212,885.40, 30,319,328.10 and 8,076,347.60

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Solution

The fourth proportional to 20,212,885.40, 30,319,328.10 and 8,076,347.60 is: 12,114,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,885.40 : 30,319,328.10 = 8,076,347.60 : x
  2. Step 2: Convert to fraction form
    20,212,885.40/30,319,328.10 = 8,076,347.60/x
  3. Step 3: Cross multiply
    20,212,885.40x = 30,319,328.10 × 8,076,347.60
  4. Step 4: Simplify right side
    20,212,885.40x = 244,869,432,734,047.56
  5. Step 5: Solve for x
    x = 244,869,432,734,047.56/20,212,885.40
  6. Step 6: Final answer
    x = 12,114,521.40

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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.