Home / 254,196,257.80-381,294,386.70-72,419,816.20

Finding the Fourth Proportional to 254,196,257.80, 381,294,386.70 and 72,419,816.20

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Solution

The fourth proportional to 254,196,257.80, 381,294,386.70 and 72,419,816.20 is: 108,629,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,196,257.80 : 381,294,386.70 = 72,419,816.20 : x
  2. Step 2: Convert to fraction form
    254,196,257.80/381,294,386.70 = 72,419,816.20/x
  3. Step 3: Cross multiply
    254,196,257.80x = 381,294,386.70 × 72,419,816.20
  4. Step 4: Simplify right side
    254,196,257.80x = 27,613,269,402,905,724
  5. Step 5: Solve for x
    x = 27,613,269,402,905,724/254,196,257.80
  6. Step 6: Final answer
    x = 108,629,724.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.