Home / 20,681,242.38-28,535,788.08-11,978,895.60

Finding the Fourth Proportional to 20,681,242.38, 28,535,788.08 and 11,978,895.60

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Solution

The fourth proportional to 20,681,242.38, 28,535,788.08 and 11,978,895.60 is: 16,528,370.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,242.38 : 28,535,788.08 = 11,978,895.60 : x
  2. Step 2: Convert to fraction form
    20,681,242.38/28,535,788.08 = 11,978,895.60/x
  3. Step 3: Cross multiply
    20,681,242.38x = 28,535,788.08 × 11,978,895.60
  4. Step 4: Simplify right side
    20,681,242.38x = 341,827,226,274,044.44
  5. Step 5: Solve for x
    x = 341,827,226,274,044.44/20,681,242.38
  6. Step 6: Final answer
    x = 16,528,370.01

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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.