Finding the Fourth Proportional to 19,327,431.98, 26,669,688.99 and 11,592,788.78
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Solution
The fourth proportional to 19,327,431.98, 26,669,688.99 and 11,592,788.78 is: 15,996,748.64
Step by Step Solution
- Step 1: Write the proportion equation
19,327,431.98 : 26,669,688.99 = 11,592,788.78 : x - Step 2: Convert to fraction form
19,327,431.98/26,669,688.99 = 11,592,788.78/x - Step 3: Cross multiply
19,327,431.98x = 26,669,688.99 × 11,592,788.78 - Step 4: Simplify right side
19,327,431.98x = 309,176,071,289,361.50 - Step 5: Solve for x
x = 309,176,071,289,361.50/19,327,431.98 - Step 6: Final answer
x = 15,996,748.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.