Home / 30,778,784.89-42,474,764.48-16,841,449.42

Finding the Fourth Proportional to 30,778,784.89, 42,474,764.48 and 16,841,449.42

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Solution

The fourth proportional to 30,778,784.89, 42,474,764.48 and 16,841,449.42 is: 23,241,222.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,778,784.89 : 42,474,764.48 = 16,841,449.42 : x
  2. Step 2: Convert to fraction form
    30,778,784.89/42,474,764.48 = 16,841,449.42/x
  3. Step 3: Cross multiply
    30,778,784.89x = 42,474,764.48 × 16,841,449.42
  4. Step 4: Simplify right side
    30,778,784.89x = 715,336,597,658,436.38
  5. Step 5: Solve for x
    x = 715,336,597,658,436.38/30,778,784.89
  6. Step 6: Final answer
    x = 23,241,222.82

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1.5x scale

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.