Finding the Fourth Proportional to 91,174,326.08, 125,809,042.56 and 72,636,483.20
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Solution
The fourth proportional to 91,174,326.08, 125,809,042.56 and 72,636,483.20 is: 100,229,163.18
Step by Step Solution
- Step 1: Write the proportion equation
91,174,326.08 : 125,809,042.56 = 72,636,483.20 : x - Step 2: Convert to fraction form
91,174,326.08/125,809,042.56 = 72,636,483.20/x - Step 3: Cross multiply
91,174,326.08x = 125,809,042.56 × 72,636,483.20 - Step 4: Simplify right side
91,174,326.08x = 9,138,326,406,317,526 - Step 5: Solve for x
x = 9,138,326,406,317,526/91,174,326.08 - Step 6: Final answer
x = 100,229,163.18
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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.