Finding the Fourth Proportional to 21,484,944.28, 29,592,742.98 and 16,513,878.70
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Solution
The fourth proportional to 21,484,944.28, 29,592,742.98 and 16,513,878.70 is: 22,745,740.53
Step by Step Solution
- Step 1: Write the proportion equation
21,484,944.28 : 29,592,742.98 = 16,513,878.70 : x - Step 2: Convert to fraction form
21,484,944.28/29,592,742.98 = 16,513,878.70/x - Step 3: Cross multiply
21,484,944.28x = 29,592,742.98 × 16,513,878.70 - Step 4: Simplify right side
21,484,944.28x = 488,690,967,971,996.50 - Step 5: Solve for x
x = 488,690,967,971,996.50/21,484,944.28 - Step 6: Final answer
x = 22,745,740.53
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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.