Home / 1,328,874,825.20-1,993,312,237.80-638,615,634.80

Finding the Fourth Proportional to 1,328,874,825.20, 1,993,312,237.80 and 638,615,634.80

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Solution

The fourth proportional to 1,328,874,825.20, 1,993,312,237.80 and 638,615,634.80 is: 957,923,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,874,825.20 : 1,993,312,237.80 = 638,615,634.80 : x
  2. Step 2: Convert to fraction form
    1,328,874,825.20/1,993,312,237.80 = 638,615,634.80/x
  3. Step 3: Cross multiply
    1,328,874,825.20x = 1,993,312,237.80 × 638,615,634.80
  4. Step 4: Simplify right side
    1,328,874,825.20x = 1,272,960,360,097,255,424
  5. Step 5: Solve for x
    x = 1,272,960,360,097,255,424/1,328,874,825.20
  6. Step 6: Final answer
    x = 957,923,452.20

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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.