Home / 268,272,811.20-402,409,216.80-190,338,628.80

Finding the Fourth Proportional to 268,272,811.20, 402,409,216.80 and 190,338,628.80

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Solution

The fourth proportional to 268,272,811.20, 402,409,216.80 and 190,338,628.80 is: 285,507,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,272,811.20 : 402,409,216.80 = 190,338,628.80 : x
  2. Step 2: Convert to fraction form
    268,272,811.20/402,409,216.80 = 190,338,628.80/x
  3. Step 3: Cross multiply
    268,272,811.20x = 402,409,216.80 × 190,338,628.80
  4. Step 4: Simplify right side
    268,272,811.20x = 76,594,018,542,193,936
  5. Step 5: Solve for x
    x = 76,594,018,542,193,936/268,272,811.20
  6. Step 6: Final answer
    x = 285,507,943.20

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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.