Home / 66,928,672.12-92,445,755.07-55,210,405.36

Finding the Fourth Proportional to 66,928,672.12, 92,445,755.07 and 55,210,405.36

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Solution

The fourth proportional to 66,928,672.12, 92,445,755.07 and 55,210,405.36 is: 76,259,806.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928,672.12 : 92,445,755.07 = 55,210,405.36 : x
  2. Step 2: Convert to fraction form
    66,928,672.12/92,445,755.07 = 55,210,405.36/x
  3. Step 3: Cross multiply
    66,928,672.12x = 92,445,755.07 × 55,210,405.36
  4. Step 4: Simplify right side
    66,928,672.12x = 5,103,967,611,225,975
  5. Step 5: Solve for x
    x = 5,103,967,611,225,975/66,928,672.12
  6. Step 6: Final answer
    x = 76,259,806.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.