Home / 401,278,566.20-553,766,382.81-225,075,978.41

Finding the Fourth Proportional to 401,278,566.20, 553,766,382.81 and 225,075,978.41

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Solution

The fourth proportional to 401,278,566.20, 553,766,382.81 and 225,075,978.41 is: 310,605,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,278,566.20 : 553,766,382.81 = 225,075,978.41 : x
  2. Step 2: Convert to fraction form
    401,278,566.20/553,766,382.81 = 225,075,978.41/x
  3. Step 3: Cross multiply
    401,278,566.20x = 553,766,382.81 × 225,075,978.41
  4. Step 4: Simplify right side
    401,278,566.20x = 124,639,510,418,758,512
  5. Step 5: Solve for x
    x = 124,639,510,418,758,512/401,278,566.20
  6. Step 6: Final answer
    x = 310,605,950.38

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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.