Home / 30,439,071.75-42,005,975.07-16,500,383.73

Finding the Fourth Proportional to 30,439,071.75, 42,005,975.07 and 16,500,383.73

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Solution

The fourth proportional to 30,439,071.75, 42,005,975.07 and 16,500,383.73 is: 22,770,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439,071.75 : 42,005,975.07 = 16,500,383.73 : x
  2. Step 2: Convert to fraction form
    30,439,071.75/42,005,975.07 = 16,500,383.73/x
  3. Step 3: Cross multiply
    30,439,071.75x = 42,005,975.07 × 16,500,383.73
  4. Step 4: Simplify right side
    30,439,071.75x = 693,114,707,607,813.62
  5. Step 5: Solve for x
    x = 693,114,707,607,813.62/30,439,071.75
  6. Step 6: Final answer
    x = 22,770,559.93

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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.