Home / 38,909,426.28-53,695,219.37-21,268,352.54

Finding the Fourth Proportional to 38,909,426.28, 53,695,219.37 and 21,268,352.54

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Solution

The fourth proportional to 38,909,426.28, 53,695,219.37 and 21,268,352.54 is: 29,350,441.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,909,426.28 : 53,695,219.37 = 21,268,352.54 : x
  2. Step 2: Convert to fraction form
    38,909,426.28/53,695,219.37 = 21,268,352.54/x
  3. Step 3: Cross multiply
    38,909,426.28x = 53,695,219.37 × 21,268,352.54
  4. Step 4: Simplify right side
    38,909,426.28x = 1,142,008,854,898,979
  5. Step 5: Solve for x
    x = 1,142,008,854,898,979/38,909,426.28
  6. Step 6: Final answer
    x = 29,350,441.89

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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.