Home / 208,109,008.19-287,169,502.83-115,272,170.39

Finding the Fourth Proportional to 208,109,008.19, 287,169,502.83 and 115,272,170.39

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Solution

The fourth proportional to 208,109,008.19, 287,169,502.83 and 115,272,170.39 is: 159,064,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,109,008.19 : 287,169,502.83 = 115,272,170.39 : x
  2. Step 2: Convert to fraction form
    208,109,008.19/287,169,502.83 = 115,272,170.39/x
  3. Step 3: Cross multiply
    208,109,008.19x = 287,169,502.83 × 115,272,170.39
  4. Step 4: Simplify right side
    208,109,008.19x = 33,102,651,861,031,344
  5. Step 5: Solve for x
    x = 33,102,651,861,031,344/208,109,008.19
  6. Step 6: Final answer
    x = 159,064,002.80

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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.