Home / 77,300,912.40-115,965,365.40-38,865,699.60

Finding the Fourth Proportional to 77,300,912.40, 115,965,365.40 and 38,865,699.60

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Solution

The fourth proportional to 77,300,912.40, 115,965,365.40 and 38,865,699.60 is: 58,305,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,300,912.40 : 115,965,365.40 = 38,865,699.60 : x
  2. Step 2: Convert to fraction form
    77,300,912.40/115,965,365.40 = 38,865,699.60/x
  3. Step 3: Cross multiply
    77,300,912.40x = 115,965,365.40 × 38,865,699.60
  4. Step 4: Simplify right side
    77,300,912.40x = 4,507,075,055,640,634
  5. Step 5: Solve for x
    x = 4,507,075,055,640,634/77,300,912.40
  6. Step 6: Final answer
    x = 58,305,586.77

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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.