Home / 138,698,076.41-191,400,999.72-76,817,086.37

Finding the Fourth Proportional to 138,698,076.41, 191,400,999.72 and 76,817,086.37

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Solution

The fourth proportional to 138,698,076.41, 191,400,999.72 and 76,817,086.37 is: 106,006,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,698,076.41 : 191,400,999.72 = 76,817,086.37 : x
  2. Step 2: Convert to fraction form
    138,698,076.41/191,400,999.72 = 76,817,086.37/x
  3. Step 3: Cross multiply
    138,698,076.41x = 191,400,999.72 × 76,817,086.37
  4. Step 4: Simplify right side
    138,698,076.41x = 14,702,867,126,795,586
  5. Step 5: Solve for x
    x = 14,702,867,126,795,586/138,698,076.41
  6. Step 6: Final answer
    x = 106,006,280.02

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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.