Home / 208,384,802.03-312,605,947.03-120,987,478.53

Finding the Fourth Proportional to 208,384,802.03, 312,605,947.03 and 120,987,478.53

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Solution

The fourth proportional to 208,384,802.03, 312,605,947.03 and 120,987,478.53 is: 181,497,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,384,802.03 : 312,605,947.03 = 120,987,478.53 : x
  2. Step 2: Convert to fraction form
    208,384,802.03/312,605,947.03 = 120,987,478.53/x
  3. Step 3: Cross multiply
    208,384,802.03x = 312,605,947.03 × 120,987,478.53
  4. Step 4: Simplify right side
    208,384,802.03x = 37,821,405,304,642,440
  5. Step 5: Solve for x
    x = 37,821,405,304,642,440/208,384,802.03
  6. Step 6: Final answer
    x = 181,497,906.45

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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.