Home / 91,296,679.40-125,915,954.71-80,259,830.81

Finding the Fourth Proportional to 91,296,679.40, 125,915,954.71 and 80,259,830.81

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Solution

The fourth proportional to 91,296,679.40, 125,915,954.71 and 80,259,830.81 is: 110,693,984.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,296,679.40 : 125,915,954.71 = 80,259,830.81 : x
  2. Step 2: Convert to fraction form
    91,296,679.40/125,915,954.71 = 80,259,830.81/x
  3. Step 3: Cross multiply
    91,296,679.40x = 125,915,954.71 × 80,259,830.81
  4. Step 4: Simplify right side
    91,296,679.40x = 10,105,993,221,097,318
  5. Step 5: Solve for x
    x = 10,105,993,221,097,318/91,296,679.40
  6. Step 6: Final answer
    x = 110,693,984.57

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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.