Finding the Fourth Proportional to 20,373,075.60, 30,549,115.80 and 7,586,998.80
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Solution
The fourth proportional to 20,373,075.60, 30,549,115.80 and 7,586,998.80 is: 11,376,588.86
Step by Step Solution
- Step 1: Write the proportion equation
20,373,075.60 : 30,549,115.80 = 7,586,998.80 : x - Step 2: Convert to fraction form
20,373,075.60/30,549,115.80 = 7,586,998.80/x - Step 3: Cross multiply
20,373,075.60x = 30,549,115.80 × 7,586,998.80 - Step 4: Simplify right side
20,373,075.60x = 231,776,104,915,661.03 - Step 5: Solve for x
x = 231,776,104,915,661.03/20,373,075.60 - Step 6: Final answer
x = 11,376,588.86
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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.