Home / 268,638,583.80-402,286,029.30-214,890,871.80

Finding the Fourth Proportional to 268,638,583.80, 402,286,029.30 and 214,890,871.80

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Solution

The fourth proportional to 268,638,583.80, 402,286,029.30 and 214,890,871.80 is: 321,798,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,638,583.80 : 402,286,029.30 = 214,890,871.80 : x
  2. Step 2: Convert to fraction form
    268,638,583.80/402,286,029.30 = 214,890,871.80/x
  3. Step 3: Cross multiply
    268,638,583.80x = 402,286,029.30 × 214,890,871.80
  4. Step 4: Simplify right side
    268,638,583.80x = 86,447,595,549,237,344
  5. Step 5: Solve for x
    x = 86,447,595,549,237,344/268,638,583.80
  6. Step 6: Final answer
    x = 321,798,880.59

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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.