Home / 20,656,835.04-28,505,860.02-11,237,313.72

Finding the Fourth Proportional to 20,656,835.04, 28,505,860.02 and 11,237,313.72

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Solution

The fourth proportional to 20,656,835.04, 28,505,860.02 and 11,237,313.72 is: 15,507,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656,835.04 : 28,505,860.02 = 11,237,313.72 : x
  2. Step 2: Convert to fraction form
    20,656,835.04/28,505,860.02 = 11,237,313.72/x
  3. Step 3: Cross multiply
    20,656,835.04x = 28,505,860.02 × 11,237,313.72
  4. Step 4: Simplify right side
    20,656,835.04x = 320,329,291,903,145.50
  5. Step 5: Solve for x
    x = 320,329,291,903,145.50/20,656,835.04
  6. Step 6: Final answer
    x = 15,507,181.58

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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.