Finding the Fourth Proportional to 53,167,038.38, 79,705,069.25 and 20,401,120.88
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Solution
The fourth proportional to 53,167,038.38, 79,705,069.25 and 20,401,120.88 is: 30,584,226.65
Step by Step Solution
- Step 1: Write the proportion equation
53,167,038.38 : 79,705,069.25 = 20,401,120.88 : x - Step 2: Convert to fraction form
53,167,038.38/79,705,069.25 = 20,401,120.88/x - Step 3: Cross multiply
53,167,038.38x = 79,705,069.25 × 20,401,120.88 - Step 4: Simplify right side
53,167,038.38x = 1,626,072,752,017,490 - Step 5: Solve for x
x = 1,626,072,752,017,490/53,167,038.38 - Step 6: Final answer
x = 30,584,226.65
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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.