Home / 30,570,487.61-45,838,147.91-18,286,720.97

Finding the Fourth Proportional to 30,570,487.61, 45,838,147.91 and 18,286,720.97

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Solution

The fourth proportional to 30,570,487.61, 45,838,147.91 and 18,286,720.97 is: 27,419,563.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,570,487.61 : 45,838,147.91 = 18,286,720.97 : x
  2. Step 2: Convert to fraction form
    30,570,487.61/45,838,147.91 = 18,286,720.97/x
  3. Step 3: Cross multiply
    30,570,487.61x = 45,838,147.91 × 18,286,720.97
  4. Step 4: Simplify right side
    30,570,487.61x = 838,229,420,291,134.38
  5. Step 5: Solve for x
    x = 838,229,420,291,134.38/30,570,487.61
  6. Step 6: Final answer
    x = 27,419,563.31

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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.