Home / 1,939,850,641-2,911,615,560.42-1,200,684,635.56

Finding the Fourth Proportional to 1,939,850,641, 2,911,615,560.42 and 1,200,684,635.56

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Solution

The fourth proportional to 1,939,850,641, 2,911,615,560.42 and 1,200,684,635.56 is: 1,802,165,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,850,641 : 2,911,615,560.42 = 1,200,684,635.56 : x
  2. Step 2: Convert to fraction form
    1,939,850,641/2,911,615,560.42 = 1,200,684,635.56/x
  3. Step 3: Cross multiply
    1,939,850,641x = 2,911,615,560.42 × 1,200,684,635.56
  4. Step 4: Simplify right side
    1,939,850,641x = 3,495,932,068,053,712,896
  5. Step 5: Solve for x
    x = 3,495,932,068,053,712,896/1,939,850,641
  6. Step 6: Final answer
    x = 1,802,165,586.45

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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.