Home / 643,808,313.56-888,404,818.28-365,349,836.18

Finding the Fourth Proportional to 643,808,313.56, 888,404,818.28 and 365,349,836.18

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Solution

The fourth proportional to 643,808,313.56, 888,404,818.28 and 365,349,836.18 is: 504,154,028.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,808,313.56 : 888,404,818.28 = 365,349,836.18 : x
  2. Step 2: Convert to fraction form
    643,808,313.56/888,404,818.28 = 365,349,836.18/x
  3. Step 3: Cross multiply
    643,808,313.56x = 888,404,818.28 × 365,349,836.18
  4. Step 4: Simplify right side
    643,808,313.56x = 324,578,554,813,851,904
  5. Step 5: Solve for x
    x = 324,578,554,813,851,904/643,808,313.56
  6. Step 6: Final answer
    x = 504,154,028.43

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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.