Finding the Fourth Proportional to 815,270,938.98, 1,125,088,771.10 and 453,198,901.16
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Solution
The fourth proportional to 815,270,938.98, 1,125,088,771.10 and 453,198,901.16 is: 625,422,752.59
Step by Step Solution
- Step 1: Write the proportion equation
815,270,938.98 : 1,125,088,771.10 = 453,198,901.16 : x - Step 2: Convert to fraction form
815,270,938.98/1,125,088,771.10 = 453,198,901.16/x - Step 3: Cross multiply
815,270,938.98x = 1,125,088,771.10 × 453,198,901.16 - Step 4: Simplify right side
815,270,938.98x = 509,888,994,764,209,728 - Step 5: Solve for x
x = 509,888,994,764,209,728/815,270,938.98 - Step 6: Final answer
x = 625,422,752.59
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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.