Finding the Fourth Proportional to 160,390,369.48, 221,313,427.76 and 93,420,349.35
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Solution
The fourth proportional to 160,390,369.48, 221,313,427.76 and 93,420,349.35 is: 128,905,356.38
Step by Step Solution
- Step 1: Write the proportion equation
160,390,369.48 : 221,313,427.76 = 93,420,349.35 : x - Step 2: Convert to fraction form
160,390,369.48/221,313,427.76 = 93,420,349.35/x - Step 3: Cross multiply
160,390,369.48x = 221,313,427.76 × 93,420,349.35 - Step 4: Simplify right side
160,390,369.48x = 20,675,177,737,418,736 - Step 5: Solve for x
x = 20,675,177,737,418,736/160,390,369.48 - Step 6: Final answer
x = 128,905,356.38
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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.