Home / 78,364,152.81-117,290,447.94-57,609,096.81

Finding the Fourth Proportional to 78,364,152.81, 117,290,447.94 and 57,609,096.81

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Solution

The fourth proportional to 78,364,152.81, 117,290,447.94 and 57,609,096.81 is: 86,225,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,364,152.81 : 117,290,447.94 = 57,609,096.81 : x
  2. Step 2: Convert to fraction form
    78,364,152.81/117,290,447.94 = 57,609,096.81/x
  3. Step 3: Cross multiply
    78,364,152.81x = 117,290,447.94 × 57,609,096.81
  4. Step 4: Simplify right side
    78,364,152.81x = 6,756,996,770,263,725
  5. Step 5: Solve for x
    x = 6,756,996,770,263,725/78,364,152.81
  6. Step 6: Final answer
    x = 86,225,608.62

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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.