Home / 76,805,632.26-115,189,272.68-30,128,605.47

Finding the Fourth Proportional to 76,805,632.26, 115,189,272.68 and 30,128,605.47

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Solution

The fourth proportional to 76,805,632.26, 115,189,272.68 and 30,128,605.47 is: 45,185,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,805,632.26 : 115,189,272.68 = 30,128,605.47 : x
  2. Step 2: Convert to fraction form
    76,805,632.26/115,189,272.68 = 30,128,605.47/x
  3. Step 3: Cross multiply
    76,805,632.26x = 115,189,272.68 × 30,128,605.47
  4. Step 4: Simplify right side
    76,805,632.26x = 3,470,492,150,801,326.50
  5. Step 5: Solve for x
    x = 3,470,492,150,801,326.50/76,805,632.26
  6. Step 6: Final answer
    x = 45,185,386.13

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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.