Home / 27,545,115.20-41,317,672.80-21,187,457.60

Finding the Fourth Proportional to 27,545,115.20, 41,317,672.80 and 21,187,457.60

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Solution

The fourth proportional to 27,545,115.20, 41,317,672.80 and 21,187,457.60 is: 31,781,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,545,115.20 : 41,317,672.80 = 21,187,457.60 : x
  2. Step 2: Convert to fraction form
    27,545,115.20/41,317,672.80 = 21,187,457.60/x
  3. Step 3: Cross multiply
    27,545,115.20x = 41,317,672.80 × 21,187,457.60
  4. Step 4: Simplify right side
    27,545,115.20x = 875,416,440,580,673.25
  5. Step 5: Solve for x
    x = 875,416,440,580,673.25/27,545,115.20
  6. Step 6: Final answer
    x = 31,781,186.40

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1.5x scale

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.