Home / 622,487,074.05-859,428,346.28-387,882,393.57

Finding the Fourth Proportional to 622,487,074.05, 859,428,346.28 and 387,882,393.57

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Solution

The fourth proportional to 622,487,074.05, 859,428,346.28 and 387,882,393.57 is: 535,524,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,487,074.05 : 859,428,346.28 = 387,882,393.57 : x
  2. Step 2: Convert to fraction form
    622,487,074.05/859,428,346.28 = 387,882,393.57/x
  3. Step 3: Cross multiply
    622,487,074.05x = 859,428,346.28 × 387,882,393.57
  4. Step 4: Simplify right side
    622,487,074.05x = 333,357,124,056,993,216
  5. Step 5: Solve for x
    x = 333,357,124,056,993,216/622,487,074.05
  6. Step 6: Final answer
    x = 535,524,572.24

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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.