Home / 407,813,584.98-611,911,696.23-203,357,603.46

Finding the Fourth Proportional to 407,813,584.98, 611,911,696.23 and 203,357,603.46

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Solution

The fourth proportional to 407,813,584.98, 611,911,696.23 and 203,357,603.46 is: 305,131,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,813,584.98 : 611,911,696.23 = 203,357,603.46 : x
  2. Step 2: Convert to fraction form
    407,813,584.98/611,911,696.23 = 203,357,603.46/x
  3. Step 3: Cross multiply
    407,813,584.98x = 611,911,696.23 × 203,357,603.46
  4. Step 4: Simplify right side
    407,813,584.98x = 124,436,896,074,476,320
  5. Step 5: Solve for x
    x = 124,436,896,074,476,320/407,813,584.98
  6. Step 6: Final answer
    x = 305,131,806.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.