Home / 2,477,080.40-3,418,097.63-1,389,128.09

Finding the Fourth Proportional to 2,477,080.40, 3,418,097.63 and 1,389,128.09

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Solution

The fourth proportional to 2,477,080.40, 3,418,097.63 and 1,389,128.09 is: 1,916,843.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477,080.40 : 3,418,097.63 = 1,389,128.09 : x
  2. Step 2: Convert to fraction form
    2,477,080.40/3,418,097.63 = 1,389,128.09/x
  3. Step 3: Cross multiply
    2,477,080.40x = 3,418,097.63 × 1,389,128.09
  4. Step 4: Simplify right side
    2,477,080.40x = 4,748,175,444,213.49
  5. Step 5: Solve for x
    x = 4,748,175,444,213.49/2,477,080.40
  6. Step 6: Final answer
    x = 1,916,843.49

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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.