Home / 18,855,655.29-28,271,907.81-7,327,662.18

Finding the Fourth Proportional to 18,855,655.29, 28,271,907.81 and 7,327,662.18

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Solution

The fourth proportional to 18,855,655.29, 28,271,907.81 and 7,327,662.18 is: 10,986,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855,655.29 : 28,271,907.81 = 7,327,662.18 : x
  2. Step 2: Convert to fraction form
    18,855,655.29/28,271,907.81 = 7,327,662.18/x
  3. Step 3: Cross multiply
    18,855,655.29x = 28,271,907.81 × 7,327,662.18
  4. Step 4: Simplify right side
    18,855,655.29x = 207,166,989,615,783.59
  5. Step 5: Solve for x
    x = 207,166,989,615,783.59/18,855,655.29
  6. Step 6: Final answer
    x = 10,986,994.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.