Finding the Fourth Proportional to 1,197,084,744.68, 1,651,943,813.00 and 661,226,805.65
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Solution
The fourth proportional to 1,197,084,744.68, 1,651,943,813.00 and 661,226,805.65 is: 912,474,689.39
Step by Step Solution
- Step 1: Write the proportion equation
1,197,084,744.68 : 1,651,943,813.00 = 661,226,805.65 : x - Step 2: Convert to fraction form
1,197,084,744.68/1,651,943,813.00 = 661,226,805.65/x - Step 3: Cross multiply
1,197,084,744.68x = 1,651,943,813.00 × 661,226,805.65 - Step 4: Simplify right side
1,197,084,744.68x = 1,092,309,530,571,704,960 - Step 5: Solve for x
x = 1,092,309,530,571,704,960/1,197,084,744.68 - Step 6: Final answer
x = 912,474,689.39
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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.