Home / 20,698,683.60-31,104,012.60-18,235,246.80

Finding the Fourth Proportional to 20,698,683.60, 31,104,012.60 and 18,235,246.80

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Solution

The fourth proportional to 20,698,683.60, 31,104,012.60 and 18,235,246.80 is: 27,402,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,683.60 : 31,104,012.60 = 18,235,246.80 : x
  2. Step 2: Convert to fraction form
    20,698,683.60/31,104,012.60 = 18,235,246.80/x
  3. Step 3: Cross multiply
    20,698,683.60x = 31,104,012.60 × 18,235,246.80
  4. Step 4: Simplify right side
    20,698,683.60x = 567,189,346,231,309.75
  5. Step 5: Solve for x
    x = 567,189,346,231,309.75/20,698,683.60
  6. Step 6: Final answer
    x = 27,402,194.13

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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.