Home / 99,603,601.20-149,405,401.80-31,437,435.60

Finding the Fourth Proportional to 99,603,601.20, 149,405,401.80 and 31,437,435.60

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Solution

The fourth proportional to 99,603,601.20, 149,405,401.80 and 31,437,435.60 is: 47,156,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,603,601.20 : 149,405,401.80 = 31,437,435.60 : x
  2. Step 2: Convert to fraction form
    99,603,601.20/149,405,401.80 = 31,437,435.60/x
  3. Step 3: Cross multiply
    99,603,601.20x = 149,405,401.80 × 31,437,435.60
  4. Step 4: Simplify right side
    99,603,601.20x = 4,696,922,697,379,625
  5. Step 5: Solve for x
    x = 4,696,922,697,379,625/99,603,601.20
  6. Step 6: Final answer
    x = 47,156,153.40

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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.