Home / 490,404,823.44-676,208,848.92-400,818,762.42

Finding the Fourth Proportional to 490,404,823.44, 676,208,848.92 and 400,818,762.42

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Solution

The fourth proportional to 490,404,823.44, 676,208,848.92 and 400,818,762.42 is: 552,680,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,404,823.44 : 676,208,848.92 = 400,818,762.42 : x
  2. Step 2: Convert to fraction form
    490,404,823.44/676,208,848.92 = 400,818,762.42/x
  3. Step 3: Cross multiply
    490,404,823.44x = 676,208,848.92 × 400,818,762.42
  4. Step 4: Simplify right side
    490,404,823.44x = 271,037,193,961,567,136
  5. Step 5: Solve for x
    x = 271,037,193,961,567,136/490,404,823.44
  6. Step 6: Final answer
    x = 552,680,522.31

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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.