Home / 20,405,539.02-28,160,916.39-11,238,179.34

Finding the Fourth Proportional to 20,405,539.02, 28,160,916.39 and 11,238,179.34

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Solution

The fourth proportional to 20,405,539.02, 28,160,916.39 and 11,238,179.34 is: 15,509,388.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,539.02 : 28,160,916.39 = 11,238,179.34 : x
  2. Step 2: Convert to fraction form
    20,405,539.02/28,160,916.39 = 11,238,179.34/x
  3. Step 3: Cross multiply
    20,405,539.02x = 28,160,916.39 × 11,238,179.34
  4. Step 4: Simplify right side
    20,405,539.02x = 316,477,428,769,565.38
  5. Step 5: Solve for x
    x = 316,477,428,769,565.38/20,405,539.02
  6. Step 6: Final answer
    x = 15,509,388.33

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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.