Finding the Fourth Proportional to 554,651,647.79, 765,409,863.08 and 307,127,687.63
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Solution
The fourth proportional to 554,651,647.79, 765,409,863.08 and 307,127,687.63 is: 423,830,997.84
Step by Step Solution
- Step 1: Write the proportion equation
554,651,647.79 : 765,409,863.08 = 307,127,687.63 : x - Step 2: Convert to fraction form
554,651,647.79/765,409,863.08 = 307,127,687.63/x - Step 3: Cross multiply
554,651,647.79x = 765,409,863.08 × 307,127,687.63 - Step 4: Simplify right side
554,651,647.79x = 235,078,561,333,896,064 - Step 5: Solve for x
x = 235,078,561,333,896,064/554,651,647.79 - Step 6: Final answer
x = 423,830,997.84
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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.