Finding the Fourth Proportional to 623,154,949.20, 855,450,660 and 534,895,721.28
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Solution
The fourth proportional to 623,154,949.20, 855,450,660 and 534,895,721.28 is: 734,290,722.38
Step by Step Solution
- Step 1: Write the proportion equation
623,154,949.20 : 855,450,660 = 534,895,721.28 : x - Step 2: Convert to fraction form
623,154,949.20/855,450,660 = 534,895,721.28/x - Step 3: Cross multiply
623,154,949.20x = 855,450,660 × 534,895,721.28 - Step 4: Simplify right side
623,154,949.20x = 457,576,897,800,152,000 - Step 5: Solve for x
x = 457,576,897,800,152,000/623,154,949.20 - Step 6: Final answer
x = 734,290,722.38
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.