Home / 138,444,851.56-191,032,672.62-79,696,164.64

Finding the Fourth Proportional to 138,444,851.56, 191,032,672.62 and 79,696,164.64

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Solution

The fourth proportional to 138,444,851.56, 191,032,672.62 and 79,696,164.64 is: 109,968,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,444,851.56 : 191,032,672.62 = 79,696,164.64 : x
  2. Step 2: Convert to fraction form
    138,444,851.56/191,032,672.62 = 79,696,164.64/x
  3. Step 3: Cross multiply
    138,444,851.56x = 191,032,672.62 × 79,696,164.64
  4. Step 4: Simplify right side
    138,444,851.56x = 15,224,571,328,742,740
  5. Step 5: Solve for x
    x = 15,224,571,328,742,740/138,444,851.56
  6. Step 6: Final answer
    x = 109,968,490.39

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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.