Finding the Fourth Proportional to 880,186,292.80, 1,320,279,439.20 and 266,690,802.40
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Solution
The fourth proportional to 880,186,292.80, 1,320,279,439.20 and 266,690,802.40 is: 400,036,203.60
Step by Step Solution
- Step 1: Write the proportion equation
880,186,292.80 : 1,320,279,439.20 = 266,690,802.40 : x - Step 2: Convert to fraction form
880,186,292.80/1,320,279,439.20 = 266,690,802.40/x - Step 3: Cross multiply
880,186,292.80x = 1,320,279,439.20 × 266,690,802.40 - Step 4: Simplify right side
880,186,292.80x = 352,106,383,032,470,016 - Step 5: Solve for x
x = 352,106,383,032,470,016/880,186,292.80 - Step 6: Final answer
x = 400,036,203.60
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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.