Home / 15,403,659.84-21,257,834.40-8,528,898.24

Finding the Fourth Proportional to 15,403,659.84, 21,257,834.40 and 8,528,898.24

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Solution

The fourth proportional to 15,403,659.84, 21,257,834.40 and 8,528,898.24 is: 11,770,313.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403,659.84 : 21,257,834.40 = 8,528,898.24 : x
  2. Step 2: Convert to fraction form
    15,403,659.84/21,257,834.40 = 8,528,898.24/x
  3. Step 3: Cross multiply
    15,403,659.84x = 21,257,834.40 × 8,528,898.24
  4. Step 4: Simplify right side
    15,403,659.84x = 181,305,906,400,371.44
  5. Step 5: Solve for x
    x = 181,305,906,400,371.44/15,403,659.84
  6. Step 6: Final answer
    x = 11,770,313.57

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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.