Home / 78,397,326.07-117,570,813.29-25,863,188.41

Finding the Fourth Proportional to 78,397,326.07, 117,570,813.29 and 25,863,188.41

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Solution

The fourth proportional to 78,397,326.07, 117,570,813.29 and 25,863,188.41 is: 38,786,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,397,326.07 : 117,570,813.29 = 25,863,188.41 : x
  2. Step 2: Convert to fraction form
    78,397,326.07/117,570,813.29 = 25,863,188.41/x
  3. Step 3: Cross multiply
    78,397,326.07x = 117,570,813.29 × 25,863,188.41
  4. Step 4: Simplify right side
    78,397,326.07x = 3,040,756,095,636,202
  5. Step 5: Solve for x
    x = 3,040,756,095,636,202/78,397,326.07
  6. Step 6: Final answer
    x = 38,786,477.14

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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.