Finding the Fourth Proportional to 10,387,220.30, 15,580,830.45 and 5,604,251.30
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Solution
The fourth proportional to 10,387,220.30, 15,580,830.45 and 5,604,251.30 is: 8,406,376.95
Step by Step Solution
- Step 1: Write the proportion equation
10,387,220.30 : 15,580,830.45 = 5,604,251.30 : x - Step 2: Convert to fraction form
10,387,220.30/15,580,830.45 = 5,604,251.30/x - Step 3: Cross multiply
10,387,220.30x = 15,580,830.45 × 5,604,251.30 - Step 4: Simplify right side
10,387,220.30x = 87,318,889,304,492.08 - Step 5: Solve for x
x = 87,318,889,304,492.08/10,387,220.30 - Step 6: Final answer
x = 8,406,376.95
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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.