Home / 78,379,678.14-117,503,751.33-34,653,376.95

Finding the Fourth Proportional to 78,379,678.14, 117,503,751.33 and 34,653,376.95

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Solution

The fourth proportional to 78,379,678.14, 117,503,751.33 and 34,653,376.95 is: 51,950,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,379,678.14 : 117,503,751.33 = 34,653,376.95 : x
  2. Step 2: Convert to fraction form
    78,379,678.14/117,503,751.33 = 34,653,376.95/x
  3. Step 3: Cross multiply
    78,379,678.14x = 117,503,751.33 × 34,653,376.95
  4. Step 4: Simplify right side
    78,379,678.14x = 4,071,901,787,877,554
  5. Step 5: Solve for x
    x = 4,071,901,787,877,554/78,379,678.14
  6. Step 6: Final answer
    x = 51,950,988.89

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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.