Finding the Fourth Proportional to 21,519,909.10, 29,697,088.26 and 11,730,437.02
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Solution
The fourth proportional to 21,519,909.10, 29,697,088.26 and 11,730,437.02 is: 16,187,792.52
Step by Step Solution
- Step 1: Write the proportion equation
21,519,909.10 : 29,697,088.26 = 11,730,437.02 : x - Step 2: Convert to fraction form
21,519,909.10/29,697,088.26 = 11,730,437.02/x - Step 3: Cross multiply
21,519,909.10x = 29,697,088.26 × 11,730,437.02 - Step 4: Simplify right side
21,519,909.10x = 348,359,823,511,311.38 - Step 5: Solve for x
x = 348,359,823,511,311.38/21,519,909.10 - Step 6: Final answer
x = 16,187,792.52
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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.