Home / 13,513,734.21-18,648,860.78-7,318,638.44

Finding the Fourth Proportional to 13,513,734.21, 18,648,860.78 and 7,318,638.44

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Solution

The fourth proportional to 13,513,734.21, 18,648,860.78 and 7,318,638.44 is: 10,099,671.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,734.21 : 18,648,860.78 = 7,318,638.44 : x
  2. Step 2: Convert to fraction form
    13,513,734.21/18,648,860.78 = 7,318,638.44/x
  3. Step 3: Cross multiply
    13,513,734.21x = 18,648,860.78 × 7,318,638.44
  4. Step 4: Simplify right side
    13,513,734.21x = 136,484,269,480,324.20
  5. Step 5: Solve for x
    x = 136,484,269,480,324.20/13,513,734.21
  6. Step 6: Final answer
    x = 10,099,671.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.