Finding the Fourth Proportional to 940,909,660.84, 1,411,525,283.37 and 387,909,791.35
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Solution
The fourth proportional to 940,909,660.84, 1,411,525,283.37 and 387,909,791.35 is: 581,930,976.95
Step by Step Solution
- Step 1: Write the proportion equation
940,909,660.84 : 1,411,525,283.37 = 387,909,791.35 : x - Step 2: Convert to fraction form
940,909,660.84/1,411,525,283.37 = 387,909,791.35/x - Step 3: Cross multiply
940,909,660.84x = 1,411,525,283.37 × 387,909,791.35 - Step 4: Simplify right side
940,909,660.84x = 547,544,478,157,306,304 - Step 5: Solve for x
x = 547,544,478,157,306,304/940,909,660.84 - Step 6: Final answer
x = 581,930,976.95
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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.