Home / 621,695,929.26-858,015,614.16-353,836,887.83

Finding the Fourth Proportional to 621,695,929.26, 858,015,614.16 and 353,836,887.83

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Solution

The fourth proportional to 621,695,929.26, 858,015,614.16 and 353,836,887.83 is: 488,337,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,695,929.26 : 858,015,614.16 = 353,836,887.83 : x
  2. Step 2: Convert to fraction form
    621,695,929.26/858,015,614.16 = 353,836,887.83/x
  3. Step 3: Cross multiply
    621,695,929.26x = 858,015,614.16 × 353,836,887.83
  4. Step 4: Simplify right side
    621,695,929.26x = 303,597,574,619,630,400
  5. Step 5: Solve for x
    x = 303,597,574,619,630,400/621,695,929.26
  6. Step 6: Final answer
    x = 488,337,723.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.