Finding the Fourth Proportional to 21,495,269.12, 29,664,718.14 and 16,187,461.43
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Solution
The fourth proportional to 21,495,269.12, 29,664,718.14 and 16,187,461.43 is: 22,339,635.67
Step by Step Solution
- Step 1: Write the proportion equation
21,495,269.12 : 29,664,718.14 = 16,187,461.43 : x - Step 2: Convert to fraction form
21,495,269.12/29,664,718.14 = 16,187,461.43/x - Step 3: Cross multiply
21,495,269.12x = 29,664,718.14 × 16,187,461.43 - Step 4: Simplify right side
21,495,269.12x = 480,196,480,574,747.81 - Step 5: Solve for x
x = 480,196,480,574,747.81/21,495,269.12 - Step 6: Final answer
x = 22,339,635.67
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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.