Home / 1,647,704,941.85-2,271,669,128.47-1,189,029,587.96

Finding the Fourth Proportional to 1,647,704,941.85, 2,271,669,128.47 and 1,189,029,587.96

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Solution

The fourth proportional to 1,647,704,941.85, 2,271,669,128.47 and 1,189,029,587.96 is: 1,639,299,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,704,941.85 : 2,271,669,128.47 = 1,189,029,587.96 : x
  2. Step 2: Convert to fraction form
    1,647,704,941.85/2,271,669,128.47 = 1,189,029,587.96/x
  3. Step 3: Cross multiply
    1,647,704,941.85x = 2,271,669,128.47 × 1,189,029,587.96
  4. Step 4: Simplify right side
    1,647,704,941.85x = 2,701,081,807,806,136,320
  5. Step 5: Solve for x
    x = 2,701,081,807,806,136,320/1,647,704,941.85
  6. Step 6: Final answer
    x = 1,639,299,451.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.