Home / 28,378,349.53-39,162,120.86-15,325,607.18

Finding the Fourth Proportional to 28,378,349.53, 39,162,120.86 and 15,325,607.18

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Solution

The fourth proportional to 28,378,349.53, 39,162,120.86 and 15,325,607.18 is: 21,149,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,349.53 : 39,162,120.86 = 15,325,607.18 : x
  2. Step 2: Convert to fraction form
    28,378,349.53/39,162,120.86 = 15,325,607.18/x
  3. Step 3: Cross multiply
    28,378,349.53x = 39,162,120.86 × 15,325,607.18
  4. Step 4: Simplify right side
    28,378,349.53x = 600,183,280,559,415.62
  5. Step 5: Solve for x
    x = 600,183,280,559,415.62/28,378,349.53
  6. Step 6: Final answer
    x = 21,149,337.10

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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.