Finding the Fourth Proportional to 13,292,775.60, 19,939,163.40 and 13,208,794.80
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Solution
The fourth proportional to 13,292,775.60, 19,939,163.40 and 13,208,794.80 is: 19,813,192.20
Step by Step Solution
- Step 1: Write the proportion equation
13,292,775.60 : 19,939,163.40 = 13,208,794.80 : x - Step 2: Convert to fraction form
13,292,775.60/19,939,163.40 = 13,208,794.80/x - Step 3: Cross multiply
13,292,775.60x = 19,939,163.40 × 13,208,794.80 - Step 4: Simplify right side
13,292,775.60x = 263,372,317,834,270.31 - Step 5: Solve for x
x = 263,372,317,834,270.31/13,292,775.60 - Step 6: Final answer
x = 19,813,192.20
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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.