Home / 551,439,507.12-760,984,220.28-303,920,270.64

Finding the Fourth Proportional to 551,439,507.12, 760,984,220.28 and 303,920,270.64

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Solution

The fourth proportional to 551,439,507.12, 760,984,220.28 and 303,920,270.64 is: 419,408,706.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,439,507.12 : 760,984,220.28 = 303,920,270.64 : x
  2. Step 2: Convert to fraction form
    551,439,507.12/760,984,220.28 = 303,920,270.64/x
  3. Step 3: Cross multiply
    551,439,507.12x = 760,984,220.28 × 303,920,270.64
  4. Step 4: Simplify right side
    551,439,507.12x = 231,278,530,180,266,944
  5. Step 5: Solve for x
    x = 231,278,530,180,266,944/551,439,507.12
  6. Step 6: Final answer
    x = 419,408,706.11

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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.