Home / 20,643,699.24-28,489,035.60-11,351,978.28

Finding the Fourth Proportional to 20,643,699.24, 28,489,035.60 and 11,351,978.28

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Solution

The fourth proportional to 20,643,699.24, 28,489,035.60 and 11,351,978.28 is: 15,666,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,699.24 : 28,489,035.60 = 11,351,978.28 : x
  2. Step 2: Convert to fraction form
    20,643,699.24/28,489,035.60 = 11,351,978.28/x
  3. Step 3: Cross multiply
    20,643,699.24x = 28,489,035.60 × 11,351,978.28
  4. Step 4: Simplify right side
    20,643,699.24x = 323,406,913,349,346.75
  5. Step 5: Solve for x
    x = 323,406,913,349,346.75/20,643,699.24
  6. Step 6: Final answer
    x = 15,666,131.81

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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.