Home / 13,637,287.65-18,819,855.94-7,442,731.68

Finding the Fourth Proportional to 13,637,287.65, 18,819,855.94 and 7,442,731.68

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Solution

The fourth proportional to 13,637,287.65, 18,819,855.94 and 7,442,731.68 is: 10,271,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,287.65 : 18,819,855.94 = 7,442,731.68 : x
  2. Step 2: Convert to fraction form
    13,637,287.65/18,819,855.94 = 7,442,731.68/x
  3. Step 3: Cross multiply
    13,637,287.65x = 18,819,855.94 × 7,442,731.68
  4. Step 4: Simplify right side
    13,637,287.65x = 140,071,138,017,674.19
  5. Step 5: Solve for x
    x = 140,071,138,017,674.19/13,637,287.65
  6. Step 6: Final answer
    x = 10,271,187.47

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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.