Home / 208,217,015.04-287,339,507.52-115,403,514.88

Finding the Fourth Proportional to 208,217,015.04, 287,339,507.52 and 115,403,514.88

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Solution

The fourth proportional to 208,217,015.04, 287,339,507.52 and 115,403,514.88 is: 159,256,865.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,217,015.04 : 287,339,507.52 = 115,403,514.88 : x
  2. Step 2: Convert to fraction form
    208,217,015.04/287,339,507.52 = 115,403,514.88/x
  3. Step 3: Cross multiply
    208,217,015.04x = 287,339,507.52 × 115,403,514.88
  4. Step 4: Simplify right side
    208,217,015.04x = 33,159,989,131,696,188
  5. Step 5: Solve for x
    x = 33,159,989,131,696,188/208,217,015.04
  6. Step 6: Final answer
    x = 159,256,865.37

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1.5x scale

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.