Finding the Fourth Proportional to 20,725,916.13, 31,024,178.10 and 15,267,164.13
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Solution
The fourth proportional to 20,725,916.13, 31,024,178.10 and 15,267,164.13 is: 22,853,089.63
Step by Step Solution
- Step 1: Write the proportion equation
20,725,916.13 : 31,024,178.10 = 15,267,164.13 : x - Step 2: Convert to fraction form
20,725,916.13/31,024,178.10 = 15,267,164.13/x - Step 3: Cross multiply
20,725,916.13x = 31,024,178.10 × 15,267,164.13 - Step 4: Simplify right side
20,725,916.13x = 473,651,219,051,051.62 - Step 5: Solve for x
x = 473,651,219,051,051.62/20,725,916.13 - Step 6: Final answer
x = 22,853,089.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.