Home / 19,318,343.69-28,990,801.51-7,958,792.32

Finding the Fourth Proportional to 19,318,343.69, 28,990,801.51 and 7,958,792.32

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Solution

The fourth proportional to 19,318,343.69, 28,990,801.51 and 7,958,792.32 is: 11,943,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318,343.69 : 28,990,801.51 = 7,958,792.32 : x
  2. Step 2: Convert to fraction form
    19,318,343.69/28,990,801.51 = 7,958,792.32/x
  3. Step 3: Cross multiply
    19,318,343.69x = 28,990,801.51 × 7,958,792.32
  4. Step 4: Simplify right side
    19,318,343.69x = 230,731,768,408,432.44
  5. Step 5: Solve for x
    x = 230,731,768,408,432.44/19,318,343.69
  6. Step 6: Final answer
    x = 11,943,662.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.