Home / 31,309,916.16-43,208,144.64-18,256,811.52

Finding the Fourth Proportional to 31,309,916.16, 43,208,144.64 and 18,256,811.52

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Solution

The fourth proportional to 31,309,916.16, 43,208,144.64 and 18,256,811.52 is: 25,194,668.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309,916.16 : 43,208,144.64 = 18,256,811.52 : x
  2. Step 2: Convert to fraction form
    31,309,916.16/43,208,144.64 = 18,256,811.52/x
  3. Step 3: Cross multiply
    31,309,916.16x = 43,208,144.64 × 18,256,811.52
  4. Step 4: Simplify right side
    31,309,916.16x = 788,842,952,821,378.25
  5. Step 5: Solve for x
    x = 788,842,952,821,378.25/31,309,916.16
  6. Step 6: Final answer
    x = 25,194,668.32

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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.