Home / 20,736,039.40-31,104,059.10-18,342,586.60

Finding the Fourth Proportional to 20,736,039.40, 31,104,059.10 and 18,342,586.60

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Solution

The fourth proportional to 20,736,039.40, 31,104,059.10 and 18,342,586.60 is: 27,513,879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,039.40 : 31,104,059.10 = 18,342,586.60 : x
  2. Step 2: Convert to fraction form
    20,736,039.40/31,104,059.10 = 18,342,586.60/x
  3. Step 3: Cross multiply
    20,736,039.40x = 31,104,059.10 × 18,342,586.60
  4. Step 4: Simplify right side
    20,736,039.40x = 570,528,897,653,268.12
  5. Step 5: Solve for x
    x = 570,528,897,653,268.12/20,736,039.40
  6. Step 6: Final answer
    x = 27,513,879.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.