Finding the Fourth Proportional to 19,316,017.23, 26,629,468.25 and 15,409,033.98
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Solution
The fourth proportional to 19,316,017.23, 26,629,468.25 and 15,409,033.98 is: 21,243,218.84
Step by Step Solution
- Step 1: Write the proportion equation
19,316,017.23 : 26,629,468.25 = 15,409,033.98 : x - Step 2: Convert to fraction form
19,316,017.23/26,629,468.25 = 15,409,033.98/x - Step 3: Cross multiply
19,316,017.23x = 26,629,468.25 × 15,409,033.98 - Step 4: Simplify right side
19,316,017.23x = 410,334,381,056,536 - Step 5: Solve for x
x = 410,334,381,056,536/19,316,017.23 - Step 6: Final answer
x = 21,243,218.84
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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.