Home / 842,796,575.20-1,261,676,116.77-509,795,821.18

Finding the Fourth Proportional to 842,796,575.20, 1,261,676,116.77 and 509,795,821.18

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Solution

The fourth proportional to 842,796,575.20, 1,261,676,116.77 and 509,795,821.18 is: 763,170,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,796,575.20 : 1,261,676,116.77 = 509,795,821.18 : x
  2. Step 2: Convert to fraction form
    842,796,575.20/1,261,676,116.77 = 509,795,821.18/x
  3. Step 3: Cross multiply
    842,796,575.20x = 1,261,676,116.77 × 509,795,821.18
  4. Step 4: Simplify right side
    842,796,575.20x = 643,197,212,011,955,712
  5. Step 5: Solve for x
    x = 643,197,212,011,955,712/842,796,575.20
  6. Step 6: Final answer
    x = 763,170,177.64

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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.