Home / 109,938,845.20-164,908,267.80-84,110,812.60

Finding the Fourth Proportional to 109,938,845.20, 164,908,267.80 and 84,110,812.60

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Solution

The fourth proportional to 109,938,845.20, 164,908,267.80 and 84,110,812.60 is: 126,166,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,938,845.20 : 164,908,267.80 = 84,110,812.60 : x
  2. Step 2: Convert to fraction form
    109,938,845.20/164,908,267.80 = 84,110,812.60/x
  3. Step 3: Cross multiply
    109,938,845.20x = 164,908,267.80 × 84,110,812.60
  4. Step 4: Simplify right side
    109,938,845.20x = 13,870,568,409,116,414
  5. Step 5: Solve for x
    x = 13,870,568,409,116,414/109,938,845.20
  6. Step 6: Final answer
    x = 126,166,218.90

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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.