Home / 1,986,988,530.40-2,980,482,795.60-1,973,383,640.80

Finding the Fourth Proportional to 1,986,988,530.40, 2,980,482,795.60 and 1,973,383,640.80

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Solution

The fourth proportional to 1,986,988,530.40, 2,980,482,795.60 and 1,973,383,640.80 is: 2,960,075,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,988,530.40 : 2,980,482,795.60 = 1,973,383,640.80 : x
  2. Step 2: Convert to fraction form
    1,986,988,530.40/2,980,482,795.60 = 1,973,383,640.80/x
  3. Step 3: Cross multiply
    1,986,988,530.40x = 2,980,482,795.60 × 1,973,383,640.80
  4. Step 4: Simplify right side
    1,986,988,530.40x = 5,881,635,990,522,890,240
  5. Step 5: Solve for x
    x = 5,881,635,990,522,890,240/1,986,988,530.40
  6. Step 6: Final answer
    x = 2,960,075,461.20

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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.