Home / 12,495,772.80-18,745,408.80-5,307,249.60

Finding the Fourth Proportional to 12,495,772.80, 18,745,408.80 and 5,307,249.60

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Solution

The fourth proportional to 12,495,772.80, 18,745,408.80 and 5,307,249.60 is: 7,961,617.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495,772.80 : 18,745,408.80 = 5,307,249.60 : x
  2. Step 2: Convert to fraction form
    12,495,772.80/18,745,408.80 = 5,307,249.60/x
  3. Step 3: Cross multiply
    12,495,772.80x = 18,745,408.80 × 5,307,249.60
  4. Step 4: Simplify right side
    12,495,772.80x = 99,486,563,355,636.48
  5. Step 5: Solve for x
    x = 99,486,563,355,636.48/12,495,772.80
  6. Step 6: Final answer
    x = 7,961,617.50

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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.