Home / 199,515,667.20-299,273,500.80-188,430,201.60

Finding the Fourth Proportional to 199,515,667.20, 299,273,500.80 and 188,430,201.60

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Solution

The fourth proportional to 199,515,667.20, 299,273,500.80 and 188,430,201.60 is: 282,645,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,515,667.20 : 299,273,500.80 = 188,430,201.60 : x
  2. Step 2: Convert to fraction form
    199,515,667.20/299,273,500.80 = 188,430,201.60/x
  3. Step 3: Cross multiply
    199,515,667.20x = 299,273,500.80 × 188,430,201.60
  4. Step 4: Simplify right side
    199,515,667.20x = 56,392,166,089,281,760
  5. Step 5: Solve for x
    x = 56,392,166,089,281,760/199,515,667.20
  6. Step 6: Final answer
    x = 282,645,302.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.