Home / 30,680,169.12-42,338,832.84-16,742,505.60

Finding the Fourth Proportional to 30,680,169.12, 42,338,832.84 and 16,742,505.60

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Solution

The fourth proportional to 30,680,169.12, 42,338,832.84 and 16,742,505.60 is: 23,104,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680,169.12 : 42,338,832.84 = 16,742,505.60 : x
  2. Step 2: Convert to fraction form
    30,680,169.12/42,338,832.84 = 16,742,505.60/x
  3. Step 3: Cross multiply
    30,680,169.12x = 42,338,832.84 × 16,742,505.60
  4. Step 4: Simplify right side
    30,680,169.12x = 708,858,145,921,164
  5. Step 5: Solve for x
    x = 708,858,145,921,164/30,680,169.12
  6. Step 6: Final answer
    x = 23,104,766.57

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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.