Finding the Fourth Proportional to 1,554,966,844.35, 2,332,450,266.53 and 519,693,204.30
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Solution
The fourth proportional to 1,554,966,844.35, 2,332,450,266.53 and 519,693,204.30 is: 779,539,806.45
Step by Step Solution
- Step 1: Write the proportion equation
1,554,966,844.35 : 2,332,450,266.53 = 519,693,204.30 : x - Step 2: Convert to fraction form
1,554,966,844.35/2,332,450,266.53 = 519,693,204.30/x - Step 3: Cross multiply
1,554,966,844.35x = 2,332,450,266.53 × 519,693,204.30 - Step 4: Simplify right side
1,554,966,844.35x = 1,212,158,552,880,766,464 - Step 5: Solve for x
x = 1,212,158,552,880,766,464/1,554,966,844.35 - Step 6: Final answer
x = 779,539,806.45
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Double scale
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Similar ratio
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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.