Finding the Fourth Proportional to 19,316,019.93, 26,629,472.00 and 15,409,036.70
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Solution
The fourth proportional to 19,316,019.93, 26,629,472.00 and 15,409,036.70 is: 21,243,222.61
Step by Step Solution
- Step 1: Write the proportion equation
19,316,019.93 : 26,629,472.00 = 15,409,036.70 : x - Step 2: Convert to fraction form
19,316,019.93/26,629,472.00 = 15,409,036.70/x - Step 3: Cross multiply
19,316,019.93x = 26,629,472.00 × 15,409,036.70 - Step 4: Simplify right side
19,316,019.93x = 410,334,511,268,182.31 - Step 5: Solve for x
x = 410,334,511,268,182.31/19,316,019.93 - Step 6: Final answer
x = 21,243,222.61
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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.