Home / 503,403,415.57-694,731,628.65-305,173,265.37

Finding the Fourth Proportional to 503,403,415.57, 694,731,628.65 and 305,173,265.37

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Solution

The fourth proportional to 503,403,415.57, 694,731,628.65 and 305,173,265.37 is: 421,160,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,403,415.57 : 694,731,628.65 = 305,173,265.37 : x
  2. Step 2: Convert to fraction form
    503,403,415.57/694,731,628.65 = 305,173,265.37/x
  3. Step 3: Cross multiply
    503,403,415.57x = 694,731,628.65 × 305,173,265.37
  4. Step 4: Simplify right side
    503,403,415.57x = 212,013,519,670,938,752
  5. Step 5: Solve for x
    x = 212,013,519,670,938,752/503,403,415.57
  6. Step 6: Final answer
    x = 421,160,272.48

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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.