Home / 13,555,172.89-18,705,627.70-7,360,085.62

Finding the Fourth Proportional to 13,555,172.89, 18,705,627.70 and 7,360,085.62

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Solution

The fourth proportional to 13,555,172.89, 18,705,627.70 and 7,360,085.62 is: 10,156,640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555,172.89 : 18,705,627.70 = 7,360,085.62 : x
  2. Step 2: Convert to fraction form
    13,555,172.89/18,705,627.70 = 7,360,085.62/x
  3. Step 3: Cross multiply
    13,555,172.89x = 18,705,627.70 × 7,360,085.62
  4. Step 4: Simplify right side
    13,555,172.89x = 137,675,021,447,843.67
  5. Step 5: Solve for x
    x = 137,675,021,447,843.67/13,555,172.89
  6. Step 6: Final answer
    x = 10,156,640.76

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1.5x scale

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.