Finding the Fourth Proportional to 19,623,232.16, 29,432,605.76 and 5,247,420.72
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Solution
The fourth proportional to 19,623,232.16, 29,432,605.76 and 5,247,420.72 is: 7,870,531.42
Step by Step Solution
- Step 1: Write the proportion equation
19,623,232.16 : 29,432,605.76 = 5,247,420.72 : x - Step 2: Convert to fraction form
19,623,232.16/29,432,605.76 = 5,247,420.72/x - Step 3: Cross multiply
19,623,232.16x = 29,432,605.76 × 5,247,420.72 - Step 4: Simplify right side
19,623,232.16x = 154,445,265,308,615.34 - Step 5: Solve for x
x = 154,445,265,308,615.34/19,623,232.16 - Step 6: Final answer
x = 7,870,531.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.