Home / 2,155,201,805.20-3,232,802,707.80-1,638,641,153.20

Finding the Fourth Proportional to 2,155,201,805.20, 3,232,802,707.80 and 1,638,641,153.20

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Solution

The fourth proportional to 2,155,201,805.20, 3,232,802,707.80 and 1,638,641,153.20 is: 2,457,961,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,201,805.20 : 3,232,802,707.80 = 1,638,641,153.20 : x
  2. Step 2: Convert to fraction form
    2,155,201,805.20/3,232,802,707.80 = 1,638,641,153.20/x
  3. Step 3: Cross multiply
    2,155,201,805.20x = 3,232,802,707.80 × 1,638,641,153.20
  4. Step 4: Simplify right side
    2,155,201,805.20x = 5,297,403,557,177,475,072
  5. Step 5: Solve for x
    x = 5,297,403,557,177,475,072/2,155,201,805.20
  6. Step 6: Final answer
    x = 2,457,961,729.80

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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.