Home / 621,674,722.31-858,298,292.48-395,741,185.88

Finding the Fourth Proportional to 621,674,722.31, 858,298,292.48 and 395,741,185.88

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Solution

The fourth proportional to 621,674,722.31, 858,298,292.48 and 395,741,185.88 is: 546,369,302.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,674,722.31 : 858,298,292.48 = 395,741,185.88 : x
  2. Step 2: Convert to fraction form
    621,674,722.31/858,298,292.48 = 395,741,185.88/x
  3. Step 3: Cross multiply
    621,674,722.31x = 858,298,292.48 × 395,741,185.88
  4. Step 4: Simplify right side
    621,674,722.31x = 339,663,984,101,512,128
  5. Step 5: Solve for x
    x = 339,663,984,101,512,128/621,674,722.31
  6. Step 6: Final answer
    x = 546,369,302.01

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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.