Home / 100,110,155-138,152,013.90-54,325,067

Finding the Fourth Proportional to 100,110,155, 138,152,013.90 and 54,325,067

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Solution

The fourth proportional to 100,110,155, 138,152,013.90 and 54,325,067 is: 74,968,592.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,110,155 : 138,152,013.90 = 54,325,067 : x
  2. Step 2: Convert to fraction form
    100,110,155/138,152,013.90 = 54,325,067/x
  3. Step 3: Cross multiply
    100,110,155x = 138,152,013.90 × 54,325,067
  4. Step 4: Simplify right side
    100,110,155x = 7,505,117,411,302,432
  5. Step 5: Solve for x
    x = 7,505,117,411,302,432/100,110,155
  6. Step 6: Final answer
    x = 74,968,592.46

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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.