Home / 20,754,211.45-31,144,603.20-12,118,295.20

Finding the Fourth Proportional to 20,754,211.45, 31,144,603.20 and 12,118,295.20

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Solution

The fourth proportional to 20,754,211.45, 31,144,603.20 and 12,118,295.20 is: 18,185,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754,211.45 : 31,144,603.20 = 12,118,295.20 : x
  2. Step 2: Convert to fraction form
    20,754,211.45/31,144,603.20 = 12,118,295.20/x
  3. Step 3: Cross multiply
    20,754,211.45x = 31,144,603.20 × 12,118,295.20
  4. Step 4: Simplify right side
    20,754,211.45x = 377,419,495,464,464.62
  5. Step 5: Solve for x
    x = 377,419,495,464,464.62/20,754,211.45
  6. Step 6: Final answer
    x = 18,185,200.45

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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.