Home / 847,662,853.12-1,169,511,832.32-494,984,435.20

Finding the Fourth Proportional to 847,662,853.12, 1,169,511,832.32 and 494,984,435.20

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Solution

The fourth proportional to 847,662,853.12, 1,169,511,832.32 and 494,984,435.20 is: 682,924,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,662,853.12 : 1,169,511,832.32 = 494,984,435.20 : x
  2. Step 2: Convert to fraction form
    847,662,853.12/1,169,511,832.32 = 494,984,435.20/x
  3. Step 3: Cross multiply
    847,662,853.12x = 1,169,511,832.32 × 494,984,435.20
  4. Step 4: Simplify right side
    847,662,853.12x = 578,890,153,780,632,320
  5. Step 5: Solve for x
    x = 578,890,153,780,632,320/847,662,853.12
  6. Step 6: Final answer
    x = 682,924,999.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.