Home / 13,513,734.30-18,648,860.91-7,318,638.54

Finding the Fourth Proportional to 13,513,734.30, 18,648,860.91 and 7,318,638.54

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Solution

The fourth proportional to 13,513,734.30, 18,648,860.91 and 7,318,638.54 is: 10,099,671.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,734.30 : 18,648,860.91 = 7,318,638.54 : x
  2. Step 2: Convert to fraction form
    13,513,734.30/18,648,860.91 = 7,318,638.54/x
  3. Step 3: Cross multiply
    13,513,734.30x = 18,648,860.91 × 7,318,638.54
  4. Step 4: Simplify right side
    13,513,734.30x = 136,484,272,144,297.98
  5. Step 5: Solve for x
    x = 136,484,272,144,297.98/13,513,734.30
  6. Step 6: Final answer
    x = 10,099,671.13

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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.