Home / 782,076,806.10-1,170,091,900.35-509,979,014.10

Finding the Fourth Proportional to 782,076,806.10, 1,170,091,900.35 and 509,979,014.10

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Solution

The fourth proportional to 782,076,806.10, 1,170,091,900.35 and 509,979,014.10 is: 762,997,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,076,806.10 : 1,170,091,900.35 = 509,979,014.10 : x
  2. Step 2: Convert to fraction form
    782,076,806.10/1,170,091,900.35 = 509,979,014.10/x
  3. Step 3: Cross multiply
    782,076,806.10x = 1,170,091,900.35 × 509,979,014.10
  4. Step 4: Simplify right side
    782,076,806.10x = 596,722,313,746,888,448
  5. Step 5: Solve for x
    x = 596,722,313,746,888,448/782,076,806.10
  6. Step 6: Final answer
    x = 762,997,072.78

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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.