Home / 278,291,271.60-417,436,907.40-252,761,108.40

Finding the Fourth Proportional to 278,291,271.60, 417,436,907.40 and 252,761,108.40

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Solution

The fourth proportional to 278,291,271.60, 417,436,907.40 and 252,761,108.40 is: 379,141,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,291,271.60 : 417,436,907.40 = 252,761,108.40 : x
  2. Step 2: Convert to fraction form
    278,291,271.60/417,436,907.40 = 252,761,108.40/x
  3. Step 3: Cross multiply
    278,291,271.60x = 417,436,907.40 × 252,761,108.40
  4. Step 4: Simplify right side
    278,291,271.60x = 105,511,815,401,492,160
  5. Step 5: Solve for x
    x = 105,511,815,401,492,160/278,291,271.60
  6. Step 6: Final answer
    x = 379,141,662.60

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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.