Home / 13,376,334.87-18,459,377.55-7,869,917.21

Finding the Fourth Proportional to 13,376,334.87, 18,459,377.55 and 7,869,917.21

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Solution

The fourth proportional to 13,376,334.87, 18,459,377.55 and 7,869,917.21 is: 10,860,506.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376,334.87 : 18,459,377.55 = 7,869,917.21 : x
  2. Step 2: Convert to fraction form
    13,376,334.87/18,459,377.55 = 7,869,917.21/x
  3. Step 3: Cross multiply
    13,376,334.87x = 18,459,377.55 × 7,869,917.21
  4. Step 4: Simplify right side
    13,376,334.87x = 145,273,772,974,335.75
  5. Step 5: Solve for x
    x = 145,273,772,974,335.75/13,376,334.87
  6. Step 6: Final answer
    x = 10,860,506.59

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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.