Home / 490,331,307.60-676,661,821.64-270,322,606.80

Finding the Fourth Proportional to 490,331,307.60, 676,661,821.64 and 270,322,606.80

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Solution

The fourth proportional to 490,331,307.60, 676,661,821.64 and 270,322,606.80 is: 373,047,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,331,307.60 : 676,661,821.64 = 270,322,606.80 : x
  2. Step 2: Convert to fraction form
    490,331,307.60/676,661,821.64 = 270,322,606.80/x
  3. Step 3: Cross multiply
    490,331,307.60x = 676,661,821.64 × 270,322,606.80
  4. Step 4: Simplify right side
    490,331,307.60x = 182,916,987,547,761,440
  5. Step 5: Solve for x
    x = 182,916,987,547,761,440/490,331,307.60
  6. Step 6: Final answer
    x = 373,047,742.85

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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.