Home / 5,385,650.72-8,078,453.93-2,190,749.90

Finding the Fourth Proportional to 5,385,650.72, 8,078,453.93 and 2,190,749.90

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Solution

The fourth proportional to 5,385,650.72, 8,078,453.93 and 2,190,749.90 is: 3,286,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385,650.72 : 8,078,453.93 = 2,190,749.90 : x
  2. Step 2: Convert to fraction form
    5,385,650.72/8,078,453.93 = 2,190,749.90/x
  3. Step 3: Cross multiply
    5,385,650.72x = 8,078,453.93 × 2,190,749.90
  4. Step 4: Simplify right side
    5,385,650.72x = 17,697,872,104,386.71
  5. Step 5: Solve for x
    x = 17,697,872,104,386.71/5,385,650.72
  6. Step 6: Final answer
    x = 3,286,115.84

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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.