Home / 210,326,078.25-290,244,640.77-117,507,283.20

Finding the Fourth Proportional to 210,326,078.25, 290,244,640.77 and 117,507,283.20

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Solution

The fourth proportional to 210,326,078.25, 290,244,640.77 and 117,507,283.20 is: 162,157,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,326,078.25 : 290,244,640.77 = 117,507,283.20 : x
  2. Step 2: Convert to fraction form
    210,326,078.25/290,244,640.77 = 117,507,283.20/x
  3. Step 3: Cross multiply
    210,326,078.25x = 290,244,640.77 × 117,507,283.20
  4. Step 4: Simplify right side
    210,326,078.25x = 34,105,859,200,242,656
  5. Step 5: Solve for x
    x = 34,105,859,200,242,656/210,326,078.25
  6. Step 6: Final answer
    x = 162,157,063.38

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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.