Home / 892,296,540.80-1,338,444,811.20-278,879,782.40

Finding the Fourth Proportional to 892,296,540.80, 1,338,444,811.20 and 278,879,782.40

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Solution

The fourth proportional to 892,296,540.80, 1,338,444,811.20 and 278,879,782.40 is: 418,319,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,296,540.80 : 1,338,444,811.20 = 278,879,782.40 : x
  2. Step 2: Convert to fraction form
    892,296,540.80/1,338,444,811.20 = 278,879,782.40/x
  3. Step 3: Cross multiply
    892,296,540.80x = 1,338,444,811.20 × 278,879,782.40
  4. Step 4: Simplify right side
    892,296,540.80x = 373,265,197,701,865,088
  5. Step 5: Solve for x
    x = 373,265,197,701,865,088/892,296,540.80
  6. Step 6: Final answer
    x = 418,319,673.60

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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.