Home / 621,695,928.76-858,015,613.47-353,836,887.33

Finding the Fourth Proportional to 621,695,928.76, 858,015,613.47 and 353,836,887.33

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Solution

The fourth proportional to 621,695,928.76, 858,015,613.47 and 353,836,887.33 is: 488,337,722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,695,928.76 : 858,015,613.47 = 353,836,887.33 : x
  2. Step 2: Convert to fraction form
    621,695,928.76/858,015,613.47 = 353,836,887.33/x
  3. Step 3: Cross multiply
    621,695,928.76x = 858,015,613.47 × 353,836,887.33
  4. Step 4: Simplify right side
    621,695,928.76x = 303,597,573,950,765,248
  5. Step 5: Solve for x
    x = 303,597,573,950,765,248/621,695,928.76
  6. Step 6: Final answer
    x = 488,337,722.52

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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.