Home / 646,689,942.72-970,020,908.16-180,338,922.72

Finding the Fourth Proportional to 646,689,942.72, 970,020,908.16 and 180,338,922.72

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Solution

The fourth proportional to 646,689,942.72, 970,020,908.16 and 180,338,922.72 is: 270,504,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,689,942.72 : 970,020,908.16 = 180,338,922.72 : x
  2. Step 2: Convert to fraction form
    646,689,942.72/970,020,908.16 = 180,338,922.72/x
  3. Step 3: Cross multiply
    646,689,942.72x = 970,020,908.16 × 180,338,922.72
  4. Step 4: Simplify right side
    646,689,942.72x = 174,932,525,593,450,464
  5. Step 5: Solve for x
    x = 174,932,525,593,450,464/646,689,942.72
  6. Step 6: Final answer
    x = 270,504,478.32

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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.