Home / 1,929,147.84-2,661,681.06-1,519,981.20

Finding the Fourth Proportional to 1,929,147.84, 2,661,681.06 and 1,519,981.20

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Solution

The fourth proportional to 1,929,147.84, 2,661,681.06 and 1,519,981.20 is: 2,097,146.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,147.84 : 2,661,681.06 = 1,519,981.20 : x
  2. Step 2: Convert to fraction form
    1,929,147.84/2,661,681.06 = 1,519,981.20/x
  3. Step 3: Cross multiply
    1,929,147.84x = 2,661,681.06 × 1,519,981.20
  4. Step 4: Simplify right side
    1,929,147.84x = 4,045,705,171,596.07
  5. Step 5: Solve for x
    x = 4,045,705,171,596.07/1,929,147.84
  6. Step 6: Final answer
    x = 2,097,146.26

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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.