Home / 254,238,637.20-381,361,498.86-72,485,815.20

Finding the Fourth Proportional to 254,238,637.20, 381,361,498.86 and 72,485,815.20

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Solution

The fourth proportional to 254,238,637.20, 381,361,498.86 and 72,485,815.20 is: 108,729,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,238,637.20 : 381,361,498.86 = 72,485,815.20 : x
  2. Step 2: Convert to fraction form
    254,238,637.20/381,361,498.86 = 72,485,815.20/x
  3. Step 3: Cross multiply
    254,238,637.20x = 381,361,498.86 × 72,485,815.20
  4. Step 4: Simplify right side
    254,238,637.20x = 27,643,299,130,760,972
  5. Step 5: Solve for x
    x = 27,643,299,130,760,972/254,238,637.20
  6. Step 6: Final answer
    x = 108,729,732.96

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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.