Home / 78,879,941.40-118,319,912.10-27,769,848.60

Finding the Fourth Proportional to 78,879,941.40, 118,319,912.10 and 27,769,848.60

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Solution

The fourth proportional to 78,879,941.40, 118,319,912.10 and 27,769,848.60 is: 41,654,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,879,941.40 : 118,319,912.10 = 27,769,848.60 : x
  2. Step 2: Convert to fraction form
    78,879,941.40/118,319,912.10 = 27,769,848.60/x
  3. Step 3: Cross multiply
    78,879,941.40x = 118,319,912.10 × 27,769,848.60
  4. Step 4: Simplify right side
    78,879,941.40x = 3,285,726,045,382,308
  5. Step 5: Solve for x
    x = 3,285,726,045,382,308/78,879,941.40
  6. Step 6: Final answer
    x = 41,654,772.90

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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.