Finding the Fourth Proportional to 21,145,127.68, 31,717,719.36 and 5,792,553.87
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Solution
The fourth proportional to 21,145,127.68, 31,717,719.36 and 5,792,553.87 is: 8,688,838.43
Step by Step Solution
- Step 1: Write the proportion equation
21,145,127.68 : 31,717,719.36 = 5,792,553.87 : x - Step 2: Convert to fraction form
21,145,127.68/31,717,719.36 = 5,792,553.87/x - Step 3: Cross multiply
21,145,127.68x = 31,717,719.36 × 5,792,553.87 - Step 4: Simplify right side
21,145,127.68x = 183,726,598,026,341.94 - Step 5: Solve for x
x = 183,726,598,026,341.94/21,145,127.68 - Step 6: Final answer
x = 8,688,838.43
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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.