Home / 30,670,468.86-42,324,565.85-16,919,429.34

Finding the Fourth Proportional to 30,670,468.86, 42,324,565.85 and 16,919,429.34

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Solution

The fourth proportional to 30,670,468.86, 42,324,565.85 and 16,919,429.34 is: 23,348,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670,468.86 : 42,324,565.85 = 16,919,429.34 : x
  2. Step 2: Convert to fraction form
    30,670,468.86/42,324,565.85 = 16,919,429.34/x
  3. Step 3: Cross multiply
    30,670,468.86x = 42,324,565.85 × 16,919,429.34
  4. Step 4: Simplify right side
    30,670,468.86x = 716,107,501,477,991.62
  5. Step 5: Solve for x
    x = 716,107,501,477,991.62/30,670,468.86
  6. Step 6: Final answer
    x = 23,348,436.72

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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.