Home / 257,111,046.38-354,835,126.44-145,621,720.25

Finding the Fourth Proportional to 257,111,046.38, 354,835,126.44 and 145,621,720.25

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Solution

The fourth proportional to 257,111,046.38, 354,835,126.44 and 145,621,720.25 is: 200,970,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,111,046.38 : 354,835,126.44 = 145,621,720.25 : x
  2. Step 2: Convert to fraction form
    257,111,046.38/354,835,126.44 = 145,621,720.25/x
  3. Step 3: Cross multiply
    257,111,046.38x = 354,835,126.44 × 145,621,720.25
  4. Step 4: Simplify right side
    257,111,046.38x = 51,671,701,516,875,512
  5. Step 5: Solve for x
    x = 51,671,701,516,875,512/257,111,046.38
  6. Step 6: Final answer
    x = 200,970,367.64

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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.