Home / 78,953,371.20-118,430,056.80-33,509,260.80

Finding the Fourth Proportional to 78,953,371.20, 118,430,056.80 and 33,509,260.80

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Solution

The fourth proportional to 78,953,371.20, 118,430,056.80 and 33,509,260.80 is: 50,263,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,953,371.20 : 118,430,056.80 = 33,509,260.80 : x
  2. Step 2: Convert to fraction form
    78,953,371.20/118,430,056.80 = 33,509,260.80/x
  3. Step 3: Cross multiply
    78,953,371.20x = 118,430,056.80 × 33,509,260.80
  4. Step 4: Simplify right side
    78,953,371.20x = 3,968,503,659,870,013.50
  5. Step 5: Solve for x
    x = 3,968,503,659,870,013.50/78,953,371.20
  6. Step 6: Final answer
    x = 50,263,891.20

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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.