Home / 124,416,410.10-186,624,615.15-85,449,318.90

Finding the Fourth Proportional to 124,416,410.10, 186,624,615.15 and 85,449,318.90

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Solution

The fourth proportional to 124,416,410.10, 186,624,615.15 and 85,449,318.90 is: 128,173,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,416,410.10 : 186,624,615.15 = 85,449,318.90 : x
  2. Step 2: Convert to fraction form
    124,416,410.10/186,624,615.15 = 85,449,318.90/x
  3. Step 3: Cross multiply
    124,416,410.10x = 186,624,615.15 × 85,449,318.90
  4. Step 4: Simplify right side
    124,416,410.10x = 15,946,946,254,542,122
  5. Step 5: Solve for x
    x = 15,946,946,254,542,122/124,416,410.10
  6. Step 6: Final answer
    x = 128,173,978.35

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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.