Home / 248,068,480-342,334,502.40-138,086,174.56

Finding the Fourth Proportional to 248,068,480, 342,334,502.40 and 138,086,174.56

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Solution

The fourth proportional to 248,068,480, 342,334,502.40 and 138,086,174.56 is: 190,558,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,068,480 : 342,334,502.40 = 138,086,174.56 : x
  2. Step 2: Convert to fraction form
    248,068,480/342,334,502.40 = 138,086,174.56/x
  3. Step 3: Cross multiply
    248,068,480x = 342,334,502.40 × 138,086,174.56
  4. Step 4: Simplify right side
    248,068,480x = 47,271,661,856,317,136
  5. Step 5: Solve for x
    x = 47,271,661,856,317,136/248,068,480
  6. Step 6: Final answer
    x = 190,558,920.89

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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.