Home / 145,449,822.72-200,725,014.57-79,374,579.15

Finding the Fourth Proportional to 145,449,822.72, 200,725,014.57 and 79,374,579.15

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Solution

The fourth proportional to 145,449,822.72, 200,725,014.57 and 79,374,579.15 is: 109,539,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,449,822.72 : 200,725,014.57 = 79,374,579.15 : x
  2. Step 2: Convert to fraction form
    145,449,822.72/200,725,014.57 = 79,374,579.15/x
  3. Step 3: Cross multiply
    145,449,822.72x = 200,725,014.57 × 79,374,579.15
  4. Step 4: Simplify right side
    145,449,822.72x = 15,932,463,556,371,368
  5. Step 5: Solve for x
    x = 15,932,463,556,371,368/145,449,822.72
  6. Step 6: Final answer
    x = 109,539,243.56

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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.