Finding the Fourth Proportional to 13,303,529.40, 19,955,294.10 and 8,238,415.80
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Solution
The fourth proportional to 13,303,529.40, 19,955,294.10 and 8,238,415.80 is: 12,357,623.70
Step by Step Solution
- Step 1: Write the proportion equation
13,303,529.40 : 19,955,294.10 = 8,238,415.80 : x - Step 2: Convert to fraction form
13,303,529.40/19,955,294.10 = 8,238,415.80/x - Step 3: Cross multiply
13,303,529.40x = 19,955,294.10 × 8,238,415.80 - Step 4: Simplify right side
13,303,529.40x = 164,400,010,207,086.78 - Step 5: Solve for x
x = 164,400,010,207,086.78/13,303,529.40 - Step 6: Final answer
x = 12,357,623.70
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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.