Home / 30,651,188.86-42,308,890.53-18,265,167.67

Finding the Fourth Proportional to 30,651,188.86, 42,308,890.53 and 18,265,167.67

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Solution

The fourth proportional to 30,651,188.86, 42,308,890.53 and 18,265,167.67 is: 25,212,039.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651,188.86 : 42,308,890.53 = 18,265,167.67 : x
  2. Step 2: Convert to fraction form
    30,651,188.86/42,308,890.53 = 18,265,167.67/x
  3. Step 3: Cross multiply
    30,651,188.86x = 42,308,890.53 × 18,265,167.67
  4. Step 4: Simplify right side
    30,651,188.86x = 772,778,979,588,883.62
  5. Step 5: Solve for x
    x = 772,778,979,588,883.62/30,651,188.86
  6. Step 6: Final answer
    x = 25,212,039.34

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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.