Home / 436,622,917.20-654,934,375.80-430,883,354.40

Finding the Fourth Proportional to 436,622,917.20, 654,934,375.80 and 430,883,354.40

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Solution

The fourth proportional to 436,622,917.20, 654,934,375.80 and 430,883,354.40 is: 646,325,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,622,917.20 : 654,934,375.80 = 430,883,354.40 : x
  2. Step 2: Convert to fraction form
    436,622,917.20/654,934,375.80 = 430,883,354.40/x
  3. Step 3: Cross multiply
    436,622,917.20x = 654,934,375.80 × 430,883,354.40
  4. Step 4: Simplify right side
    436,622,917.20x = 282,200,320,756,574,144
  5. Step 5: Solve for x
    x = 282,200,320,756,574,144/436,622,917.20
  6. Step 6: Final answer
    x = 646,325,031.60

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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.