Finding the Fourth Proportional to 91,132,897.49, 125,763,394.67 and 49,316,964.13
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Solution
The fourth proportional to 91,132,897.49, 125,763,394.67 and 49,316,964.13 is: 68,057,408.41
Step by Step Solution
- Step 1: Write the proportion equation
91,132,897.49 : 125,763,394.67 = 49,316,964.13 : x - Step 2: Convert to fraction form
91,132,897.49/125,763,394.67 = 49,316,964.13/x - Step 3: Cross multiply
91,132,897.49x = 125,763,394.67 × 49,316,964.13 - Step 4: Simplify right side
91,132,897.49x = 6,202,268,823,807,424 - Step 5: Solve for x
x = 6,202,268,823,807,424/91,132,897.49 - Step 6: Final answer
x = 68,057,408.41
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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.