Finding the Fourth Proportional to 156,998,292.22, 216,653,683.26 and 86,433,198.14
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Solution
The fourth proportional to 156,998,292.22, 216,653,683.26 and 86,433,198.14 is: 119,275,633.31
Step by Step Solution
- Step 1: Write the proportion equation
156,998,292.22 : 216,653,683.26 = 86,433,198.14 : x - Step 2: Convert to fraction form
156,998,292.22/216,653,683.26 = 86,433,198.14/x - Step 3: Cross multiply
156,998,292.22x = 216,653,683.26 × 86,433,198.14 - Step 4: Simplify right side
156,998,292.22x = 18,726,070,732,972,380 - Step 5: Solve for x
x = 18,726,070,732,972,380/156,998,292.22 - Step 6: Final answer
x = 119,275,633.31
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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.