Home / 20,480,652.90-30,709,169.55-7,702,449.30

Finding the Fourth Proportional to 20,480,652.90, 30,709,169.55 and 7,702,449.30

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Solution

The fourth proportional to 20,480,652.90, 30,709,169.55 and 7,702,449.30 is: 11,549,232.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480,652.90 : 30,709,169.55 = 7,702,449.30 : x
  2. Step 2: Convert to fraction form
    20,480,652.90/30,709,169.55 = 7,702,449.30/x
  3. Step 3: Cross multiply
    20,480,652.90x = 30,709,169.55 × 7,702,449.30
  4. Step 4: Simplify right side
    20,480,652.90x = 236,535,821,503,978.81
  5. Step 5: Solve for x
    x = 236,535,821,503,978.81/20,480,652.90
  6. Step 6: Final answer
    x = 11,549,232.47

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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.