Home / 993,732,904.80-1,490,599,357.20-339,422,745.60

Finding the Fourth Proportional to 993,732,904.80, 1,490,599,357.20 and 339,422,745.60

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Solution

The fourth proportional to 993,732,904.80, 1,490,599,357.20 and 339,422,745.60 is: 509,134,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,732,904.80 : 1,490,599,357.20 = 339,422,745.60 : x
  2. Step 2: Convert to fraction form
    993,732,904.80/1,490,599,357.20 = 339,422,745.60/x
  3. Step 3: Cross multiply
    993,732,904.80x = 1,490,599,357.20 × 339,422,745.60
  4. Step 4: Simplify right side
    993,732,904.80x = 505,943,326,410,419,200
  5. Step 5: Solve for x
    x = 505,943,326,410,419,200/993,732,904.80
  6. Step 6: Final answer
    x = 509,134,118.40

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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.