Finding the Fourth Proportional to 22,279,951.99, 30,745,875.54 and 12,355,233.08
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Solution
The fourth proportional to 22,279,951.99, 30,745,875.54 and 12,355,233.08 is: 17,049,967.56
Step by Step Solution
- Step 1: Write the proportion equation
22,279,951.99 : 30,745,875.54 = 12,355,233.08 : x - Step 2: Convert to fraction form
22,279,951.99/30,745,875.54 = 12,355,233.08/x - Step 3: Cross multiply
22,279,951.99x = 30,745,875.54 × 12,355,233.08 - Step 4: Simplify right side
22,279,951.99x = 379,872,458,545,370.88 - Step 5: Solve for x
x = 379,872,458,545,370.88/22,279,951.99 - Step 6: Final answer
x = 17,049,967.56
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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.