Finding the Fourth Proportional to 19,811,916.10, 27,679,995.50 and 19,811,916.10
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Solution
The fourth proportional to 19,811,916.10, 27,679,995.50 and 19,811,916.10 is: 27,679,995.50
Step by Step Solution
- Step 1: Write the proportion equation
19,811,916.10 : 27,679,995.50 = 19,811,916.10 : x - Step 2: Convert to fraction form
19,811,916.10/27,679,995.50 = 19,811,916.10/x - Step 3: Cross multiply
19,811,916.10x = 27,679,995.50 × 19,811,916.10 - Step 4: Simplify right side
19,811,916.10x = 548,393,748,494,377.56 - Step 5: Solve for x
x = 548,393,748,494,377.56/19,811,916.10 - Step 6: Final answer
x = 27,679,995.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.