Home / 646,689,995.10-970,020,986.97-180,338,975.71

Finding the Fourth Proportional to 646,689,995.10, 970,020,986.97 and 180,338,975.71

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Solution

The fourth proportional to 646,689,995.10, 970,020,986.97 and 180,338,975.71 is: 270,504,557.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,689,995.10 : 970,020,986.97 = 180,338,975.71 : x
  2. Step 2: Convert to fraction form
    646,689,995.10/970,020,986.97 = 180,338,975.71/x
  3. Step 3: Cross multiply
    646,689,995.10x = 970,020,986.97 × 180,338,975.71
  4. Step 4: Simplify right side
    646,689,995.10x = 174,932,591,204,111,264
  5. Step 5: Solve for x
    x = 174,932,591,204,111,264/646,689,995.10
  6. Step 6: Final answer
    x = 270,504,557.87

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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.