Finding the Fourth Proportional to 718,063,938.24, 990,885,528.99 and 416,625,898.02
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Solution
The fourth proportional to 718,063,938.24, 990,885,528.99 and 416,625,898.02 is: 574,918,961.06
Step by Step Solution
- Step 1: Write the proportion equation
718,063,938.24 : 990,885,528.99 = 416,625,898.02 : x - Step 2: Convert to fraction form
718,063,938.24/990,885,528.99 = 416,625,898.02/x - Step 3: Cross multiply
718,063,938.24x = 990,885,528.99 × 416,625,898.02 - Step 4: Simplify right side
718,063,938.24x = 412,828,573,350,481,472 - Step 5: Solve for x
x = 412,828,573,350,481,472/718,063,938.24 - Step 6: Final answer
x = 574,918,961.06
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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.