Home / 481,071,318.80-663,878,420-261,054,744.80

Finding the Fourth Proportional to 481,071,318.80, 663,878,420 and 261,054,744.80

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Solution

The fourth proportional to 481,071,318.80, 663,878,420 and 261,054,744.80 is: 360,255,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,071,318.80 : 663,878,420 = 261,054,744.80 : x
  2. Step 2: Convert to fraction form
    481,071,318.80/663,878,420 = 261,054,744.80/x
  3. Step 3: Cross multiply
    481,071,318.80x = 663,878,420 × 261,054,744.80
  4. Step 4: Simplify right side
    481,071,318.80x = 173,308,611,511,327,232
  5. Step 5: Solve for x
    x = 173,308,611,511,327,232/481,071,318.80
  6. Step 6: Final answer
    x = 360,255,547.85

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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.