Finding the Fourth Proportional to 908,107,102.14, 1,253,187,752.99 and 490,419,347.19
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Solution
The fourth proportional to 908,107,102.14, 1,253,187,752.99 and 490,419,347.19 is: 676,778,673.22
Step by Step Solution
- Step 1: Write the proportion equation
908,107,102.14 : 1,253,187,752.99 = 490,419,347.19 : x - Step 2: Convert to fraction form
908,107,102.14/1,253,187,752.99 = 490,419,347.19/x - Step 3: Cross multiply
908,107,102.14x = 1,253,187,752.99 × 490,419,347.19 - Step 4: Simplify right side
908,107,102.14x = 614,587,519,725,406,592 - Step 5: Solve for x
x = 614,587,519,725,406,592/908,107,102.14 - Step 6: Final answer
x = 676,778,673.22
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1.5x scale
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.