Home / 1,328,352,879.10-1,990,801,020.02-540,488,359.84

Finding the Fourth Proportional to 1,328,352,879.10, 1,990,801,020.02 and 540,488,359.84

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Solution

The fourth proportional to 1,328,352,879.10, 1,990,801,020.02 and 540,488,359.84 is: 810,029,319.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,352,879.10 : 1,990,801,020.02 = 540,488,359.84 : x
  2. Step 2: Convert to fraction form
    1,328,352,879.10/1,990,801,020.02 = 540,488,359.84/x
  3. Step 3: Cross multiply
    1,328,352,879.10x = 1,990,801,020.02 × 540,488,359.84
  4. Step 4: Simplify right side
    1,328,352,879.10x = 1,076,004,778,078,408,832
  5. Step 5: Solve for x
    x = 1,076,004,778,078,408,832/1,328,352,879.10
  6. Step 6: Final answer
    x = 810,029,319.02

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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.