Finding the Fourth Proportional to 13,167,035.70, 19,728,985.67 and 7,012,482.99
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Solution
The fourth proportional to 13,167,035.70, 19,728,985.67 and 7,012,482.99 is: 10,507,237.89
Step by Step Solution
- Step 1: Write the proportion equation
13,167,035.70 : 19,728,985.67 = 7,012,482.99 : x - Step 2: Convert to fraction form
13,167,035.70/19,728,985.67 = 7,012,482.99/x - Step 3: Cross multiply
13,167,035.70x = 19,728,985.67 × 7,012,482.99 - Step 4: Simplify right side
13,167,035.70x = 138,349,176,385,766.34 - Step 5: Solve for x
x = 138,349,176,385,766.34/13,167,035.70 - Step 6: Final answer
x = 10,507,237.89
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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.