Home / 20,506,927.05-28,298,999.34-11,339,256.33

Finding the Fourth Proportional to 20,506,927.05, 28,298,999.34 and 11,339,256.33

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Solution

The fourth proportional to 20,506,927.05, 28,298,999.34 and 11,339,256.33 is: 15,647,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506,927.05 : 28,298,999.34 = 11,339,256.33 : x
  2. Step 2: Convert to fraction form
    20,506,927.05/28,298,999.34 = 11,339,256.33/x
  3. Step 3: Cross multiply
    20,506,927.05x = 28,298,999.34 × 11,339,256.33
  4. Step 4: Simplify right side
    20,506,927.05x = 320,889,607,398,760.81
  5. Step 5: Solve for x
    x = 320,889,607,398,760.81/20,506,927.05
  6. Step 6: Final answer
    x = 15,647,864.09

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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.