Home / 28,378,349.60-39,162,120.93-15,325,607.25

Finding the Fourth Proportional to 28,378,349.60, 39,162,120.93 and 15,325,607.25

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Solution

The fourth proportional to 28,378,349.60, 39,162,120.93 and 15,325,607.25 is: 21,149,337.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,349.60 : 39,162,120.93 = 15,325,607.25 : x
  2. Step 2: Convert to fraction form
    28,378,349.60/39,162,120.93 = 15,325,607.25/x
  3. Step 3: Cross multiply
    28,378,349.60x = 39,162,120.93 × 15,325,607.25
  4. Step 4: Simplify right side
    28,378,349.60x = 600,183,284,450,184.75
  5. Step 5: Solve for x
    x = 600,183,284,450,184.75/28,378,349.60
  6. Step 6: Final answer
    x = 21,149,337.19

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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.