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Finding the Fourth Proportional to 958,321,486, 1,322,483,649.72 and 518,288,337.52

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Solution

The fourth proportional to 958,321,486, 1,322,483,649.72 and 518,288,337.52 is: 715,237,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,321,486 : 1,322,483,649.72 = 518,288,337.52 : x
  2. Step 2: Convert to fraction form
    958,321,486/1,322,483,649.72 = 518,288,337.52/x
  3. Step 3: Cross multiply
    958,321,486x = 1,322,483,649.72 × 518,288,337.52
  4. Step 4: Simplify right side
    958,321,486x = 685,427,852,210,760,832
  5. Step 5: Solve for x
    x = 685,427,852,210,760,832/958,321,486
  6. Step 6: Final answer
    x = 715,237,905.26

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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.