Home / 405,985,791.51-560,265,767.06-220,349,032.47

Finding the Fourth Proportional to 405,985,791.51, 560,265,767.06 and 220,349,032.47

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Solution

The fourth proportional to 405,985,791.51, 560,265,767.06 and 220,349,032.47 is: 304,084,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,985,791.51 : 560,265,767.06 = 220,349,032.47 : x
  2. Step 2: Convert to fraction form
    405,985,791.51/560,265,767.06 = 220,349,032.47/x
  3. Step 3: Cross multiply
    405,985,791.51x = 560,265,767.06 × 220,349,032.47
  4. Step 4: Simplify right side
    405,985,791.51x = 123,454,019,696,631,632
  5. Step 5: Solve for x
    x = 123,454,019,696,631,632/405,985,791.51
  6. Step 6: Final answer
    x = 304,084,581.97

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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.