Home / 209,279,000.79-288,802,729.26-115,191,136.13

Finding the Fourth Proportional to 209,279,000.79, 288,802,729.26 and 115,191,136.13

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Solution

The fourth proportional to 209,279,000.79, 288,802,729.26 and 115,191,136.13 is: 158,962,506.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,279,000.79 : 288,802,729.26 = 115,191,136.13 : x
  2. Step 2: Convert to fraction form
    209,279,000.79/288,802,729.26 = 115,191,136.13/x
  3. Step 3: Cross multiply
    209,279,000.79x = 288,802,729.26 × 115,191,136.13
  4. Step 4: Simplify right side
    209,279,000.79x = 33,267,514,499,460,180
  5. Step 5: Solve for x
    x = 33,267,514,499,460,180/209,279,000.79
  6. Step 6: Final answer
    x = 158,962,506.39

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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.