Home / 13,541,543.87-18,687,328.32-7,740,450.15

Finding the Fourth Proportional to 13,541,543.87, 18,687,328.32 and 7,740,450.15

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Solution

The fourth proportional to 13,541,543.87, 18,687,328.32 and 7,740,450.15 is: 10,681,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541,543.87 : 18,687,328.32 = 7,740,450.15 : x
  2. Step 2: Convert to fraction form
    13,541,543.87/18,687,328.32 = 7,740,450.15/x
  3. Step 3: Cross multiply
    13,541,543.87x = 18,687,328.32 × 7,740,450.15
  4. Step 4: Simplify right side
    13,541,543.87x = 144,648,333,297,643.25
  5. Step 5: Solve for x
    x = 144,648,333,297,643.25/13,541,543.87
  6. Step 6: Final answer
    x = 10,681,819.94

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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.