Home / 255,845,480.34-353,066,753.82-138,370,807.74

Finding the Fourth Proportional to 255,845,480.34, 353,066,753.82 and 138,370,807.74

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Solution

The fourth proportional to 255,845,480.34, 353,066,753.82 and 138,370,807.74 is: 190,951,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,845,480.34 : 353,066,753.82 = 138,370,807.74 : x
  2. Step 2: Convert to fraction form
    255,845,480.34/353,066,753.82 = 138,370,807.74/x
  3. Step 3: Cross multiply
    255,845,480.34x = 353,066,753.82 × 138,370,807.74
  4. Step 4: Simplify right side
    255,845,480.34x = 48,854,131,912,213,136
  5. Step 5: Solve for x
    x = 48,854,131,912,213,136/255,845,480.34
  6. Step 6: Final answer
    x = 190,951,709.79

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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.