Finding the Fourth Proportional to 80,852,406.90, 121,278,610.35 and 68,097,822.90
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Solution
The fourth proportional to 80,852,406.90, 121,278,610.35 and 68,097,822.90 is: 102,146,734.35
Step by Step Solution
- Step 1: Write the proportion equation
80,852,406.90 : 121,278,610.35 = 68,097,822.90 : x - Step 2: Convert to fraction form
80,852,406.90/121,278,610.35 = 68,097,822.90/x - Step 3: Cross multiply
80,852,406.90x = 121,278,610.35 × 68,097,822.90 - Step 4: Simplify right side
80,852,406.90x = 8,258,809,329,172,407 - Step 5: Solve for x
x = 8,258,809,329,172,407/80,852,406.90 - Step 6: Final answer
x = 102,146,734.35
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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.