Finding the Fourth Proportional to 852,686,772.80, 1,279,030,159.20 and 841,207,647.20
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Solution
The fourth proportional to 852,686,772.80, 1,279,030,159.20 and 841,207,647.20 is: 1,261,811,470.80
Step by Step Solution
- Step 1: Write the proportion equation
852,686,772.80 : 1,279,030,159.20 = 841,207,647.20 : x - Step 2: Convert to fraction form
852,686,772.80/1,279,030,159.20 = 841,207,647.20/x - Step 3: Cross multiply
852,686,772.80x = 1,279,030,159.20 × 841,207,647.20 - Step 4: Simplify right side
852,686,772.80x = 1,075,929,950,918,473,472 - Step 5: Solve for x
x = 1,075,929,950,918,473,472/852,686,772.80 - Step 6: Final answer
x = 1,261,811,470.80
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1.5x scale
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.