Home / 18,913,065,877.20-28,367,023,404.60-4,939,780,501.20

Finding the Fourth Proportional to 18,913,065,877.20, 28,367,023,404.60 and 4,939,780,501.20

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Solution

The fourth proportional to 18,913,065,877.20, 28,367,023,404.60 and 4,939,780,501.20 is: 7,408,998,096.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913,065,877.20 : 28,367,023,404.60 = 4,939,780,501.20 : x
  2. Step 2: Convert to fraction form
    18,913,065,877.20/28,367,023,404.60 = 4,939,780,501.20/x
  3. Step 3: Cross multiply
    18,913,065,877.20x = 28,367,023,404.60 × 4,939,780,501.20
  4. Step 4: Simplify right side
    18,913,065,877.20x = 140,126,869,091,127,099,392
  5. Step 5: Solve for x
    x = 140,126,869,091,127,099,392/18,913,065,877.20
  6. Step 6: Final answer
    x = 7,408,998,096.92

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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.