Finding the Fourth Proportional to 18,452,981.70, 27,679,472.55 and 18,452,981.70
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Solution
The fourth proportional to 18,452,981.70, 27,679,472.55 and 18,452,981.70 is: 27,679,472.55
Step by Step Solution
- Step 1: Write the proportion equation
18,452,981.70 : 27,679,472.55 = 18,452,981.70 : x - Step 2: Convert to fraction form
18,452,981.70/27,679,472.55 = 18,452,981.70/x - Step 3: Cross multiply
18,452,981.70x = 27,679,472.55 × 18,452,981.70 - Step 4: Simplify right side
18,452,981.70x = 510,768,800,430,802.31 - Step 5: Solve for x
x = 510,768,800,430,802.31/18,452,981.70 - Step 6: Final answer
x = 27,679,472.55
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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.