Home / 30,525,611.60-42,116,157.96-18,298,007.12

Finding the Fourth Proportional to 30,525,611.60, 42,116,157.96 and 18,298,007.12

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Solution

The fourth proportional to 30,525,611.60, 42,116,157.96 and 18,298,007.12 is: 25,245,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525,611.60 : 42,116,157.96 = 18,298,007.12 : x
  2. Step 2: Convert to fraction form
    30,525,611.60/42,116,157.96 = 18,298,007.12/x
  3. Step 3: Cross multiply
    30,525,611.60x = 42,116,157.96 × 18,298,007.12
  4. Step 4: Simplify right side
    30,525,611.60x = 770,641,758,219,124.75
  5. Step 5: Solve for x
    x = 770,641,758,219,124.75/30,525,611.60
  6. Step 6: Final answer
    x = 25,245,743.42

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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.