Home / 30,212,531.61-45,228,468.60-18,504,036.69

Finding the Fourth Proportional to 30,212,531.61, 45,228,468.60 and 18,504,036.69

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Solution

The fourth proportional to 30,212,531.61, 45,228,468.60 and 18,504,036.69 is: 27,700,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212,531.61 : 45,228,468.60 = 18,504,036.69 : x
  2. Step 2: Convert to fraction form
    30,212,531.61/45,228,468.60 = 18,504,036.69/x
  3. Step 3: Cross multiply
    30,212,531.61x = 45,228,468.60 × 18,504,036.69
  4. Step 4: Simplify right side
    30,212,531.61x = 836,909,242,406,913
  5. Step 5: Solve for x
    x = 836,909,242,406,913/30,212,531.61
  6. Step 6: Final answer
    x = 27,700,732.04

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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.