Home / 1,986,988,608.40-2,980,482,912.60-1,973,383,718.80

Finding the Fourth Proportional to 1,986,988,608.40, 2,980,482,912.60 and 1,973,383,718.80

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Solution

The fourth proportional to 1,986,988,608.40, 2,980,482,912.60 and 1,973,383,718.80 is: 2,960,075,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,988,608.40 : 2,980,482,912.60 = 1,973,383,718.80 : x
  2. Step 2: Convert to fraction form
    1,986,988,608.40/2,980,482,912.60 = 1,973,383,718.80/x
  3. Step 3: Cross multiply
    1,986,988,608.40x = 2,980,482,912.60 × 1,973,383,718.80
  4. Step 4: Simplify right side
    1,986,988,608.40x = 5,881,636,453,886,443,520
  5. Step 5: Solve for x
    x = 5,881,636,453,886,443,520/1,986,988,608.40
  6. Step 6: Final answer
    x = 2,960,075,578.20

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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.