Home / 405,985,795.43-560,265,772.43-220,349,036.39

Finding the Fourth Proportional to 405,985,795.43, 560,265,772.43 and 220,349,036.39

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Solution

The fourth proportional to 405,985,795.43, 560,265,772.43 and 220,349,036.39 is: 304,084,587.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,985,795.43 : 560,265,772.43 = 220,349,036.39 : x
  2. Step 2: Convert to fraction form
    405,985,795.43/560,265,772.43 = 220,349,036.39/x
  3. Step 3: Cross multiply
    405,985,795.43x = 560,265,772.43 × 220,349,036.39
  4. Step 4: Simplify right side
    405,985,795.43x = 123,454,023,076,147,760
  5. Step 5: Solve for x
    x = 123,454,023,076,147,760/405,985,795.43
  6. Step 6: Final answer
    x = 304,084,587.36

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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.