Home / 13,637,287.31-18,819,855.46-7,442,731.33

Finding the Fourth Proportional to 13,637,287.31, 18,819,855.46 and 7,442,731.33

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Solution

The fourth proportional to 13,637,287.31, 18,819,855.46 and 7,442,731.33 is: 10,271,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,287.31 : 18,819,855.46 = 7,442,731.33 : x
  2. Step 2: Convert to fraction form
    13,637,287.31/18,819,855.46 = 7,442,731.33/x
  3. Step 3: Cross multiply
    13,637,287.31x = 18,819,855.46 × 7,442,731.33
  4. Step 4: Simplify right side
    13,637,287.31x = 140,071,127,820,467.33
  5. Step 5: Solve for x
    x = 140,071,127,820,467.33/13,637,287.31
  6. Step 6: Final answer
    x = 10,271,186.98

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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.