Home / 1,638,793,513.20-2,458,190,269.80-1,449,387,940.80

Finding the Fourth Proportional to 1,638,793,513.20, 2,458,190,269.80 and 1,449,387,940.80

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Solution

The fourth proportional to 1,638,793,513.20, 2,458,190,269.80 and 1,449,387,940.80 is: 2,174,081,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,793,513.20 : 2,458,190,269.80 = 1,449,387,940.80 : x
  2. Step 2: Convert to fraction form
    1,638,793,513.20/2,458,190,269.80 = 1,449,387,940.80/x
  3. Step 3: Cross multiply
    1,638,793,513.20x = 2,458,190,269.80 × 1,449,387,940.80
  4. Step 4: Simplify right side
    1,638,793,513.20x = 3,562,871,333,240,018,432
  5. Step 5: Solve for x
    x = 3,562,871,333,240,018,432/1,638,793,513.20
  6. Step 6: Final answer
    x = 2,174,081,911.20

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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.