Home / 209,953,912.40-314,930,868.60-73,621,581.20

Finding the Fourth Proportional to 209,953,912.40, 314,930,868.60 and 73,621,581.20

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Solution

The fourth proportional to 209,953,912.40, 314,930,868.60 and 73,621,581.20 is: 110,432,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,912.40 : 314,930,868.60 = 73,621,581.20 : x
  2. Step 2: Convert to fraction form
    209,953,912.40/314,930,868.60 = 73,621,581.20/x
  3. Step 3: Cross multiply
    209,953,912.40x = 314,930,868.60 × 73,621,581.20
  4. Step 4: Simplify right side
    209,953,912.40x = 23,185,708,515,021,432
  5. Step 5: Solve for x
    x = 23,185,708,515,021,432/209,953,912.40
  6. Step 6: Final answer
    x = 110,432,371.80

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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.