Finding the Fourth Proportional to 21,087,636.48, 31,598,737.68 and 14,623,320.96
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Solution
The fourth proportional to 21,087,636.48, 31,598,737.68 and 14,623,320.96 is: 21,912,293.65
Step by Step Solution
- Step 1: Write the proportion equation
21,087,636.48 : 31,598,737.68 = 14,623,320.96 : x - Step 2: Convert to fraction form
21,087,636.48/31,598,737.68 = 14,623,320.96/x - Step 3: Cross multiply
21,087,636.48x = 31,598,737.68 × 14,623,320.96 - Step 4: Simplify right side
21,087,636.48x = 462,078,483,025,485.81 - Step 5: Solve for x
x = 462,078,483,025,485.81/21,087,636.48 - Step 6: Final answer
x = 21,912,293.65
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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.