Home / 309,622,069.22-427,278,539.50-170,392,808.66

Finding the Fourth Proportional to 309,622,069.22, 427,278,539.50 and 170,392,808.66

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Solution

The fourth proportional to 309,622,069.22, 427,278,539.50 and 170,392,808.66 is: 235,142,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,622,069.22 : 427,278,539.50 = 170,392,808.66 : x
  2. Step 2: Convert to fraction form
    309,622,069.22/427,278,539.50 = 170,392,808.66/x
  3. Step 3: Cross multiply
    309,622,069.22x = 427,278,539.50 × 170,392,808.66
  4. Step 4: Simplify right side
    309,622,069.22x = 72,805,190,422,985,376
  5. Step 5: Solve for x
    x = 72,805,190,422,985,376/309,622,069.22
  6. Step 6: Final answer
    x = 235,142,122.16

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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.