Finding the Fourth Proportional to 70,815,100.12, 97,727,842.62 and 39,453,121.24
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Solution
The fourth proportional to 70,815,100.12, 97,727,842.62 and 39,453,121.24 is: 54,446,981.18
Step by Step Solution
- Step 1: Write the proportion equation
70,815,100.12 : 97,727,842.62 = 39,453,121.24 : x - Step 2: Convert to fraction form
70,815,100.12/97,727,842.62 = 39,453,121.24/x - Step 3: Cross multiply
70,815,100.12x = 97,727,842.62 × 39,453,121.24 - Step 4: Simplify right side
70,815,100.12x = 3,855,668,423,410,499.50 - Step 5: Solve for x
x = 3,855,668,423,410,499.50/70,815,100.12 - Step 6: Final answer
x = 54,446,981.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.