Home / 1,911,921,330.42-2,638,532,863.76-1,065,148,173.50

Finding the Fourth Proportional to 1,911,921,330.42, 2,638,532,863.76 and 1,065,148,173.50

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Solution

The fourth proportional to 1,911,921,330.42, 2,638,532,863.76 and 1,065,148,173.50 is: 1,469,949,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,921,330.42 : 2,638,532,863.76 = 1,065,148,173.50 : x
  2. Step 2: Convert to fraction form
    1,911,921,330.42/2,638,532,863.76 = 1,065,148,173.50/x
  3. Step 3: Cross multiply
    1,911,921,330.42x = 2,638,532,863.76 × 1,065,148,173.50
  4. Step 4: Simplify right side
    1,911,921,330.42x = 2,810,428,460,535,170,048
  5. Step 5: Solve for x
    x = 2,810,428,460,535,170,048/1,911,921,330.42
  6. Step 6: Final answer
    x = 1,469,949,843.55

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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.