Home / 255,678,726.71-352,743,959.54-209,464,617.35

Finding the Fourth Proportional to 255,678,726.71, 352,743,959.54 and 209,464,617.35

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Solution

The fourth proportional to 255,678,726.71, 352,743,959.54 and 209,464,617.35 is: 288,985,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,678,726.71 : 352,743,959.54 = 209,464,617.35 : x
  2. Step 2: Convert to fraction form
    255,678,726.71/352,743,959.54 = 209,464,617.35/x
  3. Step 3: Cross multiply
    255,678,726.71x = 352,743,959.54 × 209,464,617.35
  4. Step 4: Simplify right side
    255,678,726.71x = 73,887,378,504,758,944
  5. Step 5: Solve for x
    x = 73,887,378,504,758,944/255,678,726.71
  6. Step 6: Final answer
    x = 288,985,241.19

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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.