Home / 20,102,938,668.10-30,154,408,002.15-5,380,960,086.10

Finding the Fourth Proportional to 20,102,938,668.10, 30,154,408,002.15 and 5,380,960,086.10

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Solution

The fourth proportional to 20,102,938,668.10, 30,154,408,002.15 and 5,380,960,086.10 is: 8,071,440,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102,938,668.10 : 30,154,408,002.15 = 5,380,960,086.10 : x
  2. Step 2: Convert to fraction form
    20,102,938,668.10/30,154,408,002.15 = 5,380,960,086.10/x
  3. Step 3: Cross multiply
    20,102,938,668.10x = 30,154,408,002.15 × 5,380,960,086.10
  4. Step 4: Simplify right side
    20,102,938,668.10x = 162,259,665,879,543,611,392
  5. Step 5: Solve for x
    x = 162,259,665,879,543,611,392/20,102,938,668.10
  6. Step 6: Final answer
    x = 8,071,440,129.15

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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.