Home / 782,076,808.60-1,170,091,904.10-509,979,016.60

Finding the Fourth Proportional to 782,076,808.60, 1,170,091,904.10 and 509,979,016.60

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Solution

The fourth proportional to 782,076,808.60, 1,170,091,904.10 and 509,979,016.60 is: 762,997,076.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,076,808.60 : 1,170,091,904.10 = 509,979,016.60 : x
  2. Step 2: Convert to fraction form
    782,076,808.60/1,170,091,904.10 = 509,979,016.60/x
  3. Step 3: Cross multiply
    782,076,808.60x = 1,170,091,904.10 × 509,979,016.60
  4. Step 4: Simplify right side
    782,076,808.60x = 596,722,318,584,539,520
  5. Step 5: Solve for x
    x = 596,722,318,584,539,520/782,076,808.60
  6. Step 6: Final answer
    x = 762,997,076.53

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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.