Home / 77,428,912.54-116,143,368.78-28,910,555.36

Finding the Fourth Proportional to 77,428,912.54, 116,143,368.78 and 28,910,555.36

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Solution

The fourth proportional to 77,428,912.54, 116,143,368.78 and 28,910,555.36 is: 43,365,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,428,912.54 : 116,143,368.78 = 28,910,555.36 : x
  2. Step 2: Convert to fraction form
    77,428,912.54/116,143,368.78 = 28,910,555.36/x
  3. Step 3: Cross multiply
    77,428,912.54x = 116,143,368.78 × 28,910,555.36
  4. Step 4: Simplify right side
    77,428,912.54x = 3,357,769,292,811,085.50
  5. Step 5: Solve for x
    x = 3,357,769,292,811,085.50/77,428,912.54
  6. Step 6: Final answer
    x = 43,365,833.03

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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.