Home / 320,975,570.72-442,939,961.04-188,830,848.80

Finding the Fourth Proportional to 320,975,570.72, 442,939,961.04 and 188,830,848.80

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Solution

The fourth proportional to 320,975,570.72, 442,939,961.04 and 188,830,848.80 is: 260,582,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,975,570.72 : 442,939,961.04 = 188,830,848.80 : x
  2. Step 2: Convert to fraction form
    320,975,570.72/442,939,961.04 = 188,830,848.80/x
  3. Step 3: Cross multiply
    320,975,570.72x = 442,939,961.04 × 188,830,848.80
  4. Step 4: Simplify right side
    320,975,570.72x = 83,640,728,810,622,144
  5. Step 5: Solve for x
    x = 83,640,728,810,622,144/320,975,570.72
  6. Step 6: Final answer
    x = 260,582,849.41

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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.