Home / 124,416,492.60-186,624,738.90-85,449,401.40

Finding the Fourth Proportional to 124,416,492.60, 186,624,738.90 and 85,449,401.40

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Solution

The fourth proportional to 124,416,492.60, 186,624,738.90 and 85,449,401.40 is: 128,174,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,416,492.60 : 186,624,738.90 = 85,449,401.40 : x
  2. Step 2: Convert to fraction form
    124,416,492.60/186,624,738.90 = 85,449,401.40/x
  3. Step 3: Cross multiply
    124,416,492.60x = 186,624,738.90 × 85,449,401.40
  4. Step 4: Simplify right side
    124,416,492.60x = 15,946,972,225,436,296
  5. Step 5: Solve for x
    x = 15,946,972,225,436,296/124,416,492.60
  6. Step 6: Final answer
    x = 128,174,102.10

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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.