Finding the Fourth Proportional to 538,950,821.40, 743,756,581.08 and 297,554,572.80
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Solution
The fourth proportional to 538,950,821.40, 743,756,581.08 and 297,554,572.80 is: 410,627,765.95
Step by Step Solution
- Step 1: Write the proportion equation
538,950,821.40 : 743,756,581.08 = 297,554,572.80 : x - Step 2: Convert to fraction form
538,950,821.40/743,756,581.08 = 297,554,572.80/x - Step 3: Cross multiply
538,950,821.40x = 743,756,581.08 × 297,554,572.80 - Step 4: Simplify right side
538,950,821.40x = 221,308,171,750,448,000 - Step 5: Solve for x
x = 221,308,171,750,448,000/538,950,821.40 - Step 6: Final answer
x = 410,627,765.95
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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.