Finding the Fourth Proportional to 16,563,055.80, 22,857,561.81 and 9,121,511.28
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Solution
The fourth proportional to 16,563,055.80, 22,857,561.81 and 9,121,511.28 is: 12,587,985.60
Step by Step Solution
- Step 1: Write the proportion equation
16,563,055.80 : 22,857,561.81 = 9,121,511.28 : x - Step 2: Convert to fraction form
16,563,055.80/22,857,561.81 = 9,121,511.28/x - Step 3: Cross multiply
16,563,055.80x = 22,857,561.81 × 9,121,511.28 - Step 4: Simplify right side
16,563,055.80x = 208,495,507,883,212.19 - Step 5: Solve for x
x = 208,495,507,883,212.19/16,563,055.80 - Step 6: Final answer
x = 12,587,985.60
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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.