Home / 76,895,999.60-115,343,999.40-67,938,047.60

Finding the Fourth Proportional to 76,895,999.60, 115,343,999.40 and 67,938,047.60

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Solution

The fourth proportional to 76,895,999.60, 115,343,999.40 and 67,938,047.60 is: 101,907,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,895,999.60 : 115,343,999.40 = 67,938,047.60 : x
  2. Step 2: Convert to fraction form
    76,895,999.60/115,343,999.40 = 67,938,047.60/x
  3. Step 3: Cross multiply
    76,895,999.60x = 115,343,999.40 × 67,938,047.60
  4. Step 4: Simplify right side
    76,895,999.60x = 7,836,246,121,611,571
  5. Step 5: Solve for x
    x = 7,836,246,121,611,571/76,895,999.60
  6. Step 6: Final answer
    x = 101,907,071.40

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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.