Home / 78,428,945.87-117,639,161.44-23,837,275.07

Finding the Fourth Proportional to 78,428,945.87, 117,639,161.44 and 23,837,275.07

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Solution

The fourth proportional to 78,428,945.87, 117,639,161.44 and 23,837,275.07 is: 35,754,618.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,428,945.87 : 117,639,161.44 = 23,837,275.07 : x
  2. Step 2: Convert to fraction form
    78,428,945.87/117,639,161.44 = 23,837,275.07/x
  3. Step 3: Cross multiply
    78,428,945.87x = 117,639,161.44 × 23,837,275.07
  4. Step 4: Simplify right side
    78,428,945.87x = 2,804,197,049,601,628.50
  5. Step 5: Solve for x
    x = 2,804,197,049,601,628.50/78,428,945.87
  6. Step 6: Final answer
    x = 35,754,618.63

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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.