Home / 203,698,916.59-305,570,240.85-87,126,379.48

Finding the Fourth Proportional to 203,698,916.59, 305,570,240.85 and 87,126,379.48

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Solution

The fourth proportional to 203,698,916.59, 305,570,240.85 and 87,126,379.48 is: 130,698,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,698,916.59 : 305,570,240.85 = 87,126,379.48 : x
  2. Step 2: Convert to fraction form
    203,698,916.59/305,570,240.85 = 87,126,379.48/x
  3. Step 3: Cross multiply
    203,698,916.59x = 305,570,240.85 × 87,126,379.48
  4. Step 4: Simplify right side
    203,698,916.59x = 26,623,228,762,092,100
  5. Step 5: Solve for x
    x = 26,623,228,762,092,100/203,698,916.59
  6. Step 6: Final answer
    x = 130,698,921.76

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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.