Finding the Fourth Proportional to 9,362,126.19, 12,920,133.14 and 5,232,157.21
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Solution
The fourth proportional to 9,362,126.19, 12,920,133.14 and 5,232,157.21 is: 7,220,599.93
Step by Step Solution
- Step 1: Write the proportion equation
9,362,126.19 : 12,920,133.14 = 5,232,157.21 : x - Step 2: Convert to fraction form
9,362,126.19/12,920,133.14 = 5,232,157.21/x - Step 3: Cross multiply
9,362,126.19x = 12,920,133.14 × 5,232,157.21 - Step 4: Simplify right side
9,362,126.19x = 67,600,167,726,370.62 - Step 5: Solve for x
x = 67,600,167,726,370.62/9,362,126.19 - Step 6: Final answer
x = 7,220,599.93
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1.5x scale
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.