Home / 629,805,494,741.52-869,131,021,159.73-355,508,883,318.69

Finding the Fourth Proportional to 629,805,494,741.52, 869,131,021,159.73 and 355,508,883,318.69

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Solution

The fourth proportional to 629,805,494,741.52, 869,131,021,159.73 and 355,508,883,318.69 is: 490,601,941,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,805,494,741.52 : 869,131,021,159.73 = 355,508,883,318.69 : x
  2. Step 2: Convert to fraction form
    629,805,494,741.52/869,131,021,159.73 = 355,508,883,318.69/x
  3. Step 3: Cross multiply
    629,805,494,741.52x = 869,131,021,159.73 × 355,508,883,318.69
  4. Step 4: Simplify right side
    629,805,494,741.52x = 308,983,798,790,128,352,100,352
  5. Step 5: Solve for x
    x = 308,983,798,790,128,352,100,352/629,805,494,741.52
  6. Step 6: Final answer
    x = 490,601,941,980.42

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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.