Home / 87,685,572.60-131,528,358.90-85,166,148.60

Finding the Fourth Proportional to 87,685,572.60, 131,528,358.90 and 85,166,148.60

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Solution

The fourth proportional to 87,685,572.60, 131,528,358.90 and 85,166,148.60 is: 127,749,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,685,572.60 : 131,528,358.90 = 85,166,148.60 : x
  2. Step 2: Convert to fraction form
    87,685,572.60/131,528,358.90 = 85,166,148.60/x
  3. Step 3: Cross multiply
    87,685,572.60x = 131,528,358.90 × 85,166,148.60
  4. Step 4: Simplify right side
    87,685,572.60x = 11,201,763,759,191,532
  5. Step 5: Solve for x
    x = 11,201,763,759,191,532/87,685,572.60
  6. Step 6: Final answer
    x = 127,749,222.90

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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.