Home / 77,201,212.89-115,805,543.72-25,384,668.36

Finding the Fourth Proportional to 77,201,212.89, 115,805,543.72 and 25,384,668.36

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Solution

The fourth proportional to 77,201,212.89, 115,805,543.72 and 25,384,668.36 is: 38,078,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,201,212.89 : 115,805,543.72 = 25,384,668.36 : x
  2. Step 2: Convert to fraction form
    77,201,212.89/115,805,543.72 = 25,384,668.36/x
  3. Step 3: Cross multiply
    77,201,212.89x = 115,805,543.72 × 25,384,668.36
  4. Step 4: Simplify right side
    77,201,212.89x = 2,939,685,321,581,680.50
  5. Step 5: Solve for x
    x = 2,939,685,321,581,680.50/77,201,212.89
  6. Step 6: Final answer
    x = 38,078,227.16

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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.