Finding the Fourth Proportional to 13,106,711.80, 19,660,067.70 and 10,867,223.80
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Solution
The fourth proportional to 13,106,711.80, 19,660,067.70 and 10,867,223.80 is: 16,300,835.70
Step by Step Solution
- Step 1: Write the proportion equation
13,106,711.80 : 19,660,067.70 = 10,867,223.80 : x - Step 2: Convert to fraction form
13,106,711.80/19,660,067.70 = 10,867,223.80/x - Step 3: Cross multiply
13,106,711.80x = 19,660,067.70 × 10,867,223.80 - Step 4: Simplify right side
13,106,711.80x = 213,650,355,619,051.28 - Step 5: Solve for x
x = 213,650,355,619,051.28/13,106,711.80 - Step 6: Final answer
x = 16,300,835.70
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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.