Finding the Fourth Proportional to 7,186,140.80, 10,779,211.20 and 2,924,115.20
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Solution
The fourth proportional to 7,186,140.80, 10,779,211.20 and 2,924,115.20 is: 4,386,172.80
Step by Step Solution
- Step 1: Write the proportion equation
7,186,140.80 : 10,779,211.20 = 2,924,115.20 : x - Step 2: Convert to fraction form
7,186,140.80/10,779,211.20 = 2,924,115.20/x - Step 3: Cross multiply
7,186,140.80x = 10,779,211.20 × 2,924,115.20 - Step 4: Simplify right side
7,186,140.80x = 31,519,655,313,930.24 - Step 5: Solve for x
x = 31,519,655,313,930.24/7,186,140.80 - Step 6: Final answer
x = 4,386,172.80
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1.5x scale
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.