Home / 401,278,576.96-553,766,397.66-225,075,989.18

Finding the Fourth Proportional to 401,278,576.96, 553,766,397.66 and 225,075,989.18

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Solution

The fourth proportional to 401,278,576.96, 553,766,397.66 and 225,075,989.18 is: 310,605,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,278,576.96 : 553,766,397.66 = 225,075,989.18 : x
  2. Step 2: Convert to fraction form
    401,278,576.96/553,766,397.66 = 225,075,989.18/x
  3. Step 3: Cross multiply
    401,278,576.96x = 553,766,397.66 × 225,075,989.18
  4. Step 4: Simplify right side
    401,278,576.96x = 124,639,519,727,969,728
  5. Step 5: Solve for x
    x = 124,639,519,727,969,728/401,278,576.96
  6. Step 6: Final answer
    x = 310,605,965.24

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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.