Finding the Fourth Proportional to 15,579,013.80, 23,368,520.70 and 12,924,805.80
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Solution
The fourth proportional to 15,579,013.80, 23,368,520.70 and 12,924,805.80 is: 19,387,208.70
Step by Step Solution
- Step 1: Write the proportion equation
15,579,013.80 : 23,368,520.70 = 12,924,805.80 : x - Step 2: Convert to fraction form
15,579,013.80/23,368,520.70 = 12,924,805.80/x - Step 3: Cross multiply
15,579,013.80x = 23,368,520.70 × 12,924,805.80 - Step 4: Simplify right side
15,579,013.80x = 302,033,591,880,780.06 - Step 5: Solve for x
x = 302,033,591,880,780.06/15,579,013.80 - Step 6: Final answer
x = 19,387,208.70
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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.