Home / 20,102,938,754.60-30,154,408,131.90-5,380,960,172.60

Finding the Fourth Proportional to 20,102,938,754.60, 30,154,408,131.90 and 5,380,960,172.60

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Solution

The fourth proportional to 20,102,938,754.60, 30,154,408,131.90 and 5,380,960,172.60 is: 8,071,440,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102,938,754.60 : 30,154,408,131.90 = 5,380,960,172.60 : x
  2. Step 2: Convert to fraction form
    20,102,938,754.60/30,154,408,131.90 = 5,380,960,172.60/x
  3. Step 3: Cross multiply
    20,102,938,754.60x = 30,154,408,131.90 × 5,380,960,172.60
  4. Step 4: Simplify right side
    20,102,938,754.60x = 162,259,669,186,079,490,048
  5. Step 5: Solve for x
    x = 162,259,669,186,079,490,048/20,102,938,754.60
  6. Step 6: Final answer
    x = 8,071,440,258.90

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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.