Home / 842,796,566.70-1,261,676,104.02-509,795,812.68

Finding the Fourth Proportional to 842,796,566.70, 1,261,676,104.02 and 509,795,812.68

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Solution

The fourth proportional to 842,796,566.70, 1,261,676,104.02 and 509,795,812.68 is: 763,170,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,796,566.70 : 1,261,676,104.02 = 509,795,812.68 : x
  2. Step 2: Convert to fraction form
    842,796,566.70/1,261,676,104.02 = 509,795,812.68/x
  3. Step 3: Cross multiply
    842,796,566.70x = 1,261,676,104.02 × 509,795,812.68
  4. Step 4: Simplify right side
    842,796,566.70x = 643,197,194,787,812,096
  5. Step 5: Solve for x
    x = 643,197,194,787,812,096/842,796,566.70
  6. Step 6: Final answer
    x = 763,170,164.90

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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.