Finding the Fourth Proportional to 21,701,952.11, 29,935,071.33 and 12,875,154.15
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Solution
The fourth proportional to 21,701,952.11, 29,935,071.33 and 12,875,154.15 is: 17,759,630.84
Step by Step Solution
- Step 1: Write the proportion equation
21,701,952.11 : 29,935,071.33 = 12,875,154.15 : x - Step 2: Convert to fraction form
21,701,952.11/29,935,071.33 = 12,875,154.15/x - Step 3: Cross multiply
21,701,952.11x = 29,935,071.33 × 12,875,154.15 - Step 4: Simplify right side
21,701,952.11x = 385,418,657,875,457.44 - Step 5: Solve for x
x = 385,418,657,875,457.44/21,701,952.11 - Step 6: Final answer
x = 17,759,630.84
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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.