Home / 118,632,468.78-163,729,994.36-66,424,868.91

Finding the Fourth Proportional to 118,632,468.78, 163,729,994.36 and 66,424,868.91

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Solution

The fourth proportional to 118,632,468.78, 163,729,994.36 and 66,424,868.91 is: 91,675,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,632,468.78 : 163,729,994.36 = 66,424,868.91 : x
  2. Step 2: Convert to fraction form
    118,632,468.78/163,729,994.36 = 66,424,868.91/x
  3. Step 3: Cross multiply
    118,632,468.78x = 163,729,994.36 × 66,424,868.91
  4. Step 4: Simplify right side
    118,632,468.78x = 10,875,743,411,665,914
  5. Step 5: Solve for x
    x = 10,875,743,411,665,914/118,632,468.78
  6. Step 6: Final answer
    x = 91,675,942.71

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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.