Finding the Fourth Proportional to 13,480,201.70, 20,220,302.55 and 10,291,555.70
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Solution
The fourth proportional to 13,480,201.70, 20,220,302.55 and 10,291,555.70 is: 15,437,333.55
Step by Step Solution
- Step 1: Write the proportion equation
13,480,201.70 : 20,220,302.55 = 10,291,555.70 : x - Step 2: Convert to fraction form
13,480,201.70/20,220,302.55 = 10,291,555.70/x - Step 3: Cross multiply
13,480,201.70x = 20,220,302.55 × 10,291,555.70 - Step 4: Simplify right side
13,480,201.70x = 208,098,369,964,177.03 - Step 5: Solve for x
x = 208,098,369,964,177.03/13,480,201.70 - Step 6: Final answer
x = 15,437,333.55
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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.