Home / 38,493,309.60-53,120,766.08-21,090,313.80

Finding the Fourth Proportional to 38,493,309.60, 53,120,766.08 and 21,090,313.80

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Solution

The fourth proportional to 38,493,309.60, 53,120,766.08 and 21,090,313.80 is: 29,104,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,493,309.60 : 53,120,766.08 = 21,090,313.80 : x
  2. Step 2: Convert to fraction form
    38,493,309.60/53,120,766.08 = 21,090,313.80/x
  3. Step 3: Cross multiply
    38,493,309.60x = 53,120,766.08 × 21,090,313.80
  4. Step 4: Simplify right side
    38,493,309.60x = 1,120,333,625,818,144.38
  5. Step 5: Solve for x
    x = 1,120,333,625,818,144.38/38,493,309.60
  6. Step 6: Final answer
    x = 29,104,632.40

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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.