Finding the Fourth Proportional to 399,450,713.31, 551,259,008.52 and 223,238,703.48
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Solution
The fourth proportional to 399,450,713.31, 551,259,008.52 and 223,238,703.48 is: 308,078,924.99
Step by Step Solution
- Step 1: Write the proportion equation
399,450,713.31 : 551,259,008.52 = 223,238,703.48 : x - Step 2: Convert to fraction form
399,450,713.31/551,259,008.52 = 223,238,703.48/x - Step 3: Cross multiply
399,450,713.31x = 551,259,008.52 × 223,238,703.48 - Step 4: Simplify right side
399,450,713.31x = 123,062,346,343,675,056 - Step 5: Solve for x
x = 123,062,346,343,675,056/399,450,713.31 - Step 6: Final answer
x = 308,078,924.99
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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.