Home / 1,988,441,122.38-2,745,224,419.95-1,767,813,853.74

Finding the Fourth Proportional to 1,988,441,122.38, 2,745,224,419.95 and 1,767,813,853.74

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Solution

The fourth proportional to 1,988,441,122.38, 2,745,224,419.95 and 1,767,813,853.74 is: 2,440,628,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,441,122.38 : 2,745,224,419.95 = 1,767,813,853.74 : x
  2. Step 2: Convert to fraction form
    1,988,441,122.38/2,745,224,419.95 = 1,767,813,853.74/x
  3. Step 3: Cross multiply
    1,988,441,122.38x = 2,745,224,419.95 × 1,767,813,853.74
  4. Step 4: Simplify right side
    1,988,441,122.38x = 4,853,045,761,212,964,864
  5. Step 5: Solve for x
    x = 4,853,045,761,212,964,864/1,988,441,122.38
  6. Step 6: Final answer
    x = 2,440,628,342.77

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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.