Home / 78,136,437.38-117,221,454.39-26,326,188.50

Finding the Fourth Proportional to 78,136,437.38, 117,221,454.39 and 26,326,188.50

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Solution

The fourth proportional to 78,136,437.38, 117,221,454.39 and 26,326,188.50 is: 39,494,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,136,437.38 : 117,221,454.39 = 26,326,188.50 : x
  2. Step 2: Convert to fraction form
    78,136,437.38/117,221,454.39 = 26,326,188.50/x
  3. Step 3: Cross multiply
    78,136,437.38x = 117,221,454.39 × 26,326,188.50
  4. Step 4: Simplify right side
    78,136,437.38x = 3,085,994,104,515,292.50
  5. Step 5: Solve for x
    x = 3,085,994,104,515,292.50/78,136,437.38
  6. Step 6: Final answer
    x = 39,494,942.54

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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.