Home / 145,449,823.72-200,725,015.95-79,374,580.14

Finding the Fourth Proportional to 145,449,823.72, 200,725,015.95 and 79,374,580.14

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Solution

The fourth proportional to 145,449,823.72, 200,725,015.95 and 79,374,580.14 is: 109,539,244.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,449,823.72 : 200,725,015.95 = 79,374,580.14 : x
  2. Step 2: Convert to fraction form
    145,449,823.72/200,725,015.95 = 79,374,580.14/x
  3. Step 3: Cross multiply
    145,449,823.72x = 200,725,015.95 × 79,374,580.14
  4. Step 4: Simplify right side
    145,449,823.72x = 15,932,463,864,626,052
  5. Step 5: Solve for x
    x = 15,932,463,864,626,052/145,449,823.72
  6. Step 6: Final answer
    x = 109,539,244.92

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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.