Home / 7,216,144.78-9,958,281.66-3,953,075.51

Finding the Fourth Proportional to 7,216,144.78, 9,958,281.66 and 3,953,075.51

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Solution

The fourth proportional to 7,216,144.78, 9,958,281.66 and 3,953,075.51 is: 5,455,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216,144.78 : 9,958,281.66 = 3,953,075.51 : x
  2. Step 2: Convert to fraction form
    7,216,144.78/9,958,281.66 = 3,953,075.51/x
  3. Step 3: Cross multiply
    7,216,144.78x = 9,958,281.66 × 3,953,075.51
  4. Step 4: Simplify right side
    7,216,144.78x = 39,365,839,351,828.15
  5. Step 5: Solve for x
    x = 39,365,839,351,828.15/7,216,144.78
  6. Step 6: Final answer
    x = 5,455,245.22

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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.