Home / 290,321,344.80-435,482,017.20-187,528,845.60

Finding the Fourth Proportional to 290,321,344.80, 435,482,017.20 and 187,528,845.60

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Solution

The fourth proportional to 290,321,344.80, 435,482,017.20 and 187,528,845.60 is: 281,293,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,321,344.80 : 435,482,017.20 = 187,528,845.60 : x
  2. Step 2: Convert to fraction form
    290,321,344.80/435,482,017.20 = 187,528,845.60/x
  3. Step 3: Cross multiply
    290,321,344.80x = 435,482,017.20 × 187,528,845.60
  4. Step 4: Simplify right side
    290,321,344.80x = 81,665,439,965,075,344
  5. Step 5: Solve for x
    x = 81,665,439,965,075,344/290,321,344.80
  6. Step 6: Final answer
    x = 281,293,268.40

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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.