Finding the Fourth Proportional to 1,347,519,112.65, 2,021,278,668.98 and 657,070,965.45
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Solution
The fourth proportional to 1,347,519,112.65, 2,021,278,668.98 and 657,070,965.45 is: 985,606,448.18
Step by Step Solution
- Step 1: Write the proportion equation
1,347,519,112.65 : 2,021,278,668.98 = 657,070,965.45 : x - Step 2: Convert to fraction form
1,347,519,112.65/2,021,278,668.98 = 657,070,965.45/x - Step 3: Cross multiply
1,347,519,112.65x = 2,021,278,668.98 × 657,070,965.45 - Step 4: Simplify right side
1,347,519,112.65x = 1,328,123,526,466,894,336 - Step 5: Solve for x
x = 1,328,123,526,466,894,336/1,347,519,112.65 - Step 6: Final answer
x = 985,606,448.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.