Home / 208,743,043.26-312,976,357.29-99,585,061.86

Finding the Fourth Proportional to 208,743,043.26, 312,976,357.29 and 99,585,061.86

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Solution

The fourth proportional to 208,743,043.26, 312,976,357.29 and 99,585,061.86 is: 149,311,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,743,043.26 : 312,976,357.29 = 99,585,061.86 : x
  2. Step 2: Convert to fraction form
    208,743,043.26/312,976,357.29 = 99,585,061.86/x
  3. Step 3: Cross multiply
    208,743,043.26x = 312,976,357.29 × 99,585,061.86
  4. Step 4: Simplify right side
    208,743,043.26x = 31,167,769,901,442,112
  5. Step 5: Solve for x
    x = 31,167,769,901,442,112/208,743,043.26
  6. Step 6: Final answer
    x = 149,311,658.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.