Home / 403,287,015.60-604,930,523.40-198,912,999.60

Finding the Fourth Proportional to 403,287,015.60, 604,930,523.40 and 198,912,999.60

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Solution

The fourth proportional to 403,287,015.60, 604,930,523.40 and 198,912,999.60 is: 298,369,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,287,015.60 : 604,930,523.40 = 198,912,999.60 : x
  2. Step 2: Convert to fraction form
    403,287,015.60/604,930,523.40 = 198,912,999.60/x
  3. Step 3: Cross multiply
    403,287,015.60x = 604,930,523.40 × 198,912,999.60
  4. Step 4: Simplify right side
    403,287,015.60x = 120,328,544,959,091,984
  5. Step 5: Solve for x
    x = 120,328,544,959,091,984/403,287,015.60
  6. Step 6: Final answer
    x = 298,369,499.40

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Similar ratio
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1.5x scale

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.