Finding the Fourth Proportional to 48,387,467.70, 72,581,201.55 and 21,513,611.70
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Solution
The fourth proportional to 48,387,467.70, 72,581,201.55 and 21,513,611.70 is: 32,270,417.55
Step by Step Solution
- Step 1: Write the proportion equation
48,387,467.70 : 72,581,201.55 = 21,513,611.70 : x - Step 2: Convert to fraction form
48,387,467.70/72,581,201.55 = 21,513,611.70/x - Step 3: Cross multiply
48,387,467.70x = 72,581,201.55 × 21,513,611.70 - Step 4: Simplify right side
48,387,467.70x = 1,561,483,786,866,138 - Step 5: Solve for x
x = 1,561,483,786,866,138/48,387,467.70 - Step 6: Final answer
x = 32,270,417.55
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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.