Home / 2,187,154,970.33-3,017,949,172.88-1,328,382,660.06

Finding the Fourth Proportional to 2,187,154,970.33, 3,017,949,172.88 and 1,328,382,660.06

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Solution

The fourth proportional to 2,187,154,970.33, 3,017,949,172.88 and 1,328,382,660.06 is: 1,832,970,870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,154,970.33 : 3,017,949,172.88 = 1,328,382,660.06 : x
  2. Step 2: Convert to fraction form
    2,187,154,970.33/3,017,949,172.88 = 1,328,382,660.06/x
  3. Step 3: Cross multiply
    2,187,154,970.33x = 3,017,949,172.88 × 1,328,382,660.06
  4. Step 4: Simplify right side
    2,187,154,970.33x = 4,008,991,350,189,569,024
  5. Step 5: Solve for x
    x = 4,008,991,350,189,569,024/2,187,154,970.33
  6. Step 6: Final answer
    x = 1,832,970,870.64

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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.