Home / 512,042,631.90-767,977,391.24-143,492,825.22

Finding the Fourth Proportional to 512,042,631.90, 767,977,391.24 and 143,492,825.22

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Solution

The fourth proportional to 512,042,631.90, 767,977,391.24 and 143,492,825.22 is: 215,214,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,042,631.90 : 767,977,391.24 = 143,492,825.22 : x
  2. Step 2: Convert to fraction form
    512,042,631.90/767,977,391.24 = 143,492,825.22/x
  3. Step 3: Cross multiply
    512,042,631.90x = 767,977,391.24 × 143,492,825.22
  4. Step 4: Simplify right side
    512,042,631.90x = 110,199,245,574,112,880
  5. Step 5: Solve for x
    x = 110,199,245,574,112,880/512,042,631.90
  6. Step 6: Final answer
    x = 215,214,981.54

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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.