Home / 66,771,015.20-100,156,522.80-55,291,889.60

Finding the Fourth Proportional to 66,771,015.20, 100,156,522.80 and 55,291,889.60

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Solution

The fourth proportional to 66,771,015.20, 100,156,522.80 and 55,291,889.60 is: 82,937,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771,015.20 : 100,156,522.80 = 55,291,889.60 : x
  2. Step 2: Convert to fraction form
    66,771,015.20/100,156,522.80 = 55,291,889.60/x
  3. Step 3: Cross multiply
    66,771,015.20x = 100,156,522.80 × 55,291,889.60
  4. Step 4: Simplify right side
    66,771,015.20x = 5,537,843,401,377,483
  5. Step 5: Solve for x
    x = 5,537,843,401,377,483/66,771,015.20
  6. Step 6: Final answer
    x = 82,937,834.40

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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.