Home / 12,351,821.60-18,531,604.45-7,433,220.15

Finding the Fourth Proportional to 12,351,821.60, 18,531,604.45 and 7,433,220.15

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Solution

The fourth proportional to 12,351,821.60, 18,531,604.45 and 7,433,220.15 is: 11,152,160.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351,821.60 : 18,531,604.45 = 7,433,220.15 : x
  2. Step 2: Convert to fraction form
    12,351,821.60/18,531,604.45 = 7,433,220.15/x
  3. Step 3: Cross multiply
    12,351,821.60x = 18,531,604.45 × 7,433,220.15
  4. Step 4: Simplify right side
    12,351,821.60x = 137,749,495,521,493.11
  5. Step 5: Solve for x
    x = 137,749,495,521,493.11/12,351,821.60
  6. Step 6: Final answer
    x = 11,152,160.39

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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.