Home / 281,340,999.60-422,011,499.40-189,507,994.80

Finding the Fourth Proportional to 281,340,999.60, 422,011,499.40 and 189,507,994.80

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Solution

The fourth proportional to 281,340,999.60, 422,011,499.40 and 189,507,994.80 is: 284,261,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,340,999.60 : 422,011,499.40 = 189,507,994.80 : x
  2. Step 2: Convert to fraction form
    281,340,999.60/422,011,499.40 = 189,507,994.80/x
  3. Step 3: Cross multiply
    281,340,999.60x = 422,011,499.40 × 189,507,994.80
  4. Step 4: Simplify right side
    281,340,999.60x = 79,974,553,033,835,408
  5. Step 5: Solve for x
    x = 79,974,553,033,835,408/281,340,999.60
  6. Step 6: Final answer
    x = 284,261,992.20

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1.5x scale

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.