Home / 13,980,267,014.70-20,970,400,522.05-12,783,036,729.90

Finding the Fourth Proportional to 13,980,267,014.70, 20,970,400,522.05 and 12,783,036,729.90

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Solution

The fourth proportional to 13,980,267,014.70, 20,970,400,522.05 and 12,783,036,729.90 is: 19,174,555,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980,267,014.70 : 20,970,400,522.05 = 12,783,036,729.90 : x
  2. Step 2: Convert to fraction form
    13,980,267,014.70/20,970,400,522.05 = 12,783,036,729.90/x
  3. Step 3: Cross multiply
    13,980,267,014.70x = 20,970,400,522.05 × 12,783,036,729.90
  4. Step 4: Simplify right side
    13,980,267,014.70x = 268,065,400,114,079,268,864
  5. Step 5: Solve for x
    x = 268,065,400,114,079,268,864/13,980,267,014.70
  6. Step 6: Final answer
    x = 19,174,555,094.85

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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.