Home / 281,017,352.80-421,526,029.20-252,390,397.60

Finding the Fourth Proportional to 281,017,352.80, 421,526,029.20 and 252,390,397.60

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Solution

The fourth proportional to 281,017,352.80, 421,526,029.20 and 252,390,397.60 is: 378,585,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,017,352.80 : 421,526,029.20 = 252,390,397.60 : x
  2. Step 2: Convert to fraction form
    281,017,352.80/421,526,029.20 = 252,390,397.60/x
  3. Step 3: Cross multiply
    281,017,352.80x = 421,526,029.20 × 252,390,397.60
  4. Step 4: Simplify right side
    281,017,352.80x = 106,389,122,108,537,200
  5. Step 5: Solve for x
    x = 106,389,122,108,537,200/281,017,352.80
  6. Step 6: Final answer
    x = 378,585,596.40

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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.