Home / 138,133,896.88-190,623,807.96-75,409,994.83

Finding the Fourth Proportional to 138,133,896.88, 190,623,807.96 and 75,409,994.83

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Solution

The fourth proportional to 138,133,896.88, 190,623,807.96 and 75,409,994.83 is: 104,065,263.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,133,896.88 : 190,623,807.96 = 75,409,994.83 : x
  2. Step 2: Convert to fraction form
    138,133,896.88/190,623,807.96 = 75,409,994.83/x
  3. Step 3: Cross multiply
    138,133,896.88x = 190,623,807.96 × 75,409,994.83
  4. Step 4: Simplify right side
    138,133,896.88x = 14,374,940,372,738,514
  5. Step 5: Solve for x
    x = 14,374,940,372,738,514/138,133,896.88
  6. Step 6: Final answer
    x = 104,065,263.47

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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.