Finding the Fourth Proportional to 19,618,900.69, 29,428,430.36 and 7,947,492.90
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Solution
The fourth proportional to 19,618,900.69, 29,428,430.36 and 7,947,492.90 is: 11,921,271.48
Step by Step Solution
- Step 1: Write the proportion equation
19,618,900.69 : 29,428,430.36 = 7,947,492.90 : x - Step 2: Convert to fraction form
19,618,900.69/29,428,430.36 = 7,947,492.90/x - Step 3: Cross multiply
19,618,900.69x = 29,428,430.36 × 7,947,492.90 - Step 4: Simplify right side
19,618,900.69x = 233,882,241,344,244.44 - Step 5: Solve for x
x = 233,882,241,344,244.44/19,618,900.69 - Step 6: Final answer
x = 11,921,271.48
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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.