Home / 841,640,974.64-1,161,500,414.82-470,362,995.08

Finding the Fourth Proportional to 841,640,974.64, 1,161,500,414.82 and 470,362,995.08

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Solution

The fourth proportional to 841,640,974.64, 1,161,500,414.82 and 470,362,995.08 is: 649,120,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,640,974.64 : 1,161,500,414.82 = 470,362,995.08 : x
  2. Step 2: Convert to fraction form
    841,640,974.64/1,161,500,414.82 = 470,362,995.08/x
  3. Step 3: Cross multiply
    841,640,974.64x = 1,161,500,414.82 × 470,362,995.08
  4. Step 4: Simplify right side
    841,640,974.64x = 546,326,813,901,397,568
  5. Step 5: Solve for x
    x = 546,326,813,901,397,568/841,640,974.64
  6. Step 6: Final answer
    x = 649,120,979.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.