Home / 112,638,980.70-168,925,928.49-51,193,903.50

Finding the Fourth Proportional to 112,638,980.70, 168,925,928.49 and 51,193,903.50

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Solution

The fourth proportional to 112,638,980.70, 168,925,928.49 and 51,193,903.50 is: 76,776,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,638,980.70 : 168,925,928.49 = 51,193,903.50 : x
  2. Step 2: Convert to fraction form
    112,638,980.70/168,925,928.49 = 51,193,903.50/x
  3. Step 3: Cross multiply
    112,638,980.70x = 168,925,928.49 × 51,193,903.50
  4. Step 4: Simplify right side
    112,638,980.70x = 8,647,977,681,764,961
  5. Step 5: Solve for x
    x = 8,647,977,681,764,961/112,638,980.70
  6. Step 6: Final answer
    x = 76,776,064.80

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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.