Finding the Fourth Proportional to 477,966,526.90, 659,418,841.28 and 289,658,974.70
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Solution
The fourth proportional to 477,966,526.90, 659,418,841.28 and 289,658,974.70 is: 399,623,351.66
Step by Step Solution
- Step 1: Write the proportion equation
477,966,526.90 : 659,418,841.28 = 289,658,974.70 : x - Step 2: Convert to fraction form
477,966,526.90/659,418,841.28 = 289,658,974.70/x - Step 3: Cross multiply
477,966,526.90x = 659,418,841.28 × 289,658,974.70 - Step 4: Simplify right side
477,966,526.90x = 191,006,585,463,026,816 - Step 5: Solve for x
x = 191,006,585,463,026,816/477,966,526.90 - Step 6: Final answer
x = 399,623,351.66
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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.