Finding the Fourth Proportional to 726,964,580.70, 1,090,446,871.05 and 436,726,935.90
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Solution
The fourth proportional to 726,964,580.70, 1,090,446,871.05 and 436,726,935.90 is: 655,090,403.85
Step by Step Solution
- Step 1: Write the proportion equation
726,964,580.70 : 1,090,446,871.05 = 436,726,935.90 : x - Step 2: Convert to fraction form
726,964,580.70/1,090,446,871.05 = 436,726,935.90/x - Step 3: Cross multiply
726,964,580.70x = 1,090,446,871.05 × 436,726,935.90 - Step 4: Simplify right side
726,964,580.70x = 476,227,520,755,408,896 - Step 5: Solve for x
x = 476,227,520,755,408,896/726,964,580.70 - Step 6: Final answer
x = 655,090,403.85
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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.