Finding the Fourth Proportional to 99,660,293.60, 137,531,585.34 and 55,609,149.11
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Solution
The fourth proportional to 99,660,293.60, 137,531,585.34 and 55,609,149.11 is: 76,740,837.90
Step by Step Solution
- Step 1: Write the proportion equation
99,660,293.60 : 137,531,585.34 = 55,609,149.11 : x - Step 2: Convert to fraction form
99,660,293.60/137,531,585.34 = 55,609,149.11/x - Step 3: Cross multiply
99,660,293.60x = 137,531,585.34 × 55,609,149.11 - Step 4: Simplify right side
99,660,293.60x = 7,648,014,435,819,092 - Step 5: Solve for x
x = 7,648,014,435,819,092/99,660,293.60 - Step 6: Final answer
x = 76,740,837.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.