Home / 20,348,928,729.20-30,523,393,093.80-20,219,934,220.40

Finding the Fourth Proportional to 20,348,928,729.20, 30,523,393,093.80 and 20,219,934,220.40

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Solution

The fourth proportional to 20,348,928,729.20, 30,523,393,093.80 and 20,219,934,220.40 is: 30,329,901,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,928,729.20 : 30,523,393,093.80 = 20,219,934,220.40 : x
  2. Step 2: Convert to fraction form
    20,348,928,729.20/30,523,393,093.80 = 20,219,934,220.40/x
  3. Step 3: Cross multiply
    20,348,928,729.20x = 30,523,393,093.80 × 20,219,934,220.40
  4. Step 4: Simplify right side
    20,348,928,729.20x = 617,181,000,540,047,671,296
  5. Step 5: Solve for x
    x = 617,181,000,540,047,671,296/20,348,928,729.20
  6. Step 6: Final answer
    x = 30,329,901,330.60

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Double scale
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Similar ratio
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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.