Finding the Fourth Proportional to 21,716,415.48, 29,971,312.16 and 12,549,058.23
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Solution
The fourth proportional to 21,716,415.48, 29,971,312.16 and 12,549,058.23 is: 17,319,236.77
Step by Step Solution
- Step 1: Write the proportion equation
21,716,415.48 : 29,971,312.16 = 12,549,058.23 : x - Step 2: Convert to fraction form
21,716,415.48/29,971,312.16 = 12,549,058.23/x - Step 3: Cross multiply
21,716,415.48x = 29,971,312.16 × 12,549,058.23 - Step 4: Simplify right side
21,716,415.48x = 376,111,741,462,601.81 - Step 5: Solve for x
x = 376,111,741,462,601.81/21,716,415.48 - Step 6: Final answer
x = 17,319,236.77
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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.