Home / 387,393,892.56-534,794,433-268,406,712.96

Finding the Fourth Proportional to 387,393,892.56, 534,794,433 and 268,406,712.96

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Solution

The fourth proportional to 387,393,892.56, 534,794,433 and 268,406,712.96 is: 370,533,502.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,393,892.56 : 534,794,433 = 268,406,712.96 : x
  2. Step 2: Convert to fraction form
    387,393,892.56/534,794,433 = 268,406,712.96/x
  3. Step 3: Cross multiply
    387,393,892.56x = 534,794,433 × 268,406,712.96
  4. Step 4: Simplify right side
    387,393,892.56x = 143,542,415,870,836,960
  5. Step 5: Solve for x
    x = 143,542,415,870,836,960/387,393,892.56
  6. Step 6: Final answer
    x = 370,533,502.53

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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.