Home / 1,260,387,963.45-1,890,863,021.66-387,077,465.97

Finding the Fourth Proportional to 1,260,387,963.45, 1,890,863,021.66 and 387,077,465.97

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Solution

The fourth proportional to 1,260,387,963.45, 1,890,863,021.66 and 387,077,465.97 is: 580,702,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,387,963.45 : 1,890,863,021.66 = 387,077,465.97 : x
  2. Step 2: Convert to fraction form
    1,260,387,963.45/1,890,863,021.66 = 387,077,465.97/x
  3. Step 3: Cross multiply
    1,260,387,963.45x = 1,890,863,021.66 × 387,077,465.97
  4. Step 4: Simplify right side
    1,260,387,963.45x = 731,910,466,918,594,688
  5. Step 5: Solve for x
    x = 731,910,466,918,594,688/1,260,387,963.45
  6. Step 6: Final answer
    x = 580,702,520.29

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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.