Finding the Fourth Proportional to 12,357,114.70, 18,535,672.05 and 10,257,594.70
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Solution
The fourth proportional to 12,357,114.70, 18,535,672.05 and 10,257,594.70 is: 15,386,392.05
Step by Step Solution
- Step 1: Write the proportion equation
12,357,114.70 : 18,535,672.05 = 10,257,594.70 : x - Step 2: Convert to fraction form
12,357,114.70/18,535,672.05 = 10,257,594.70/x - Step 3: Cross multiply
12,357,114.70x = 18,535,672.05 × 10,257,594.70 - Step 4: Simplify right side
12,357,114.70x = 190,131,411,381,018.12 - Step 5: Solve for x
x = 190,131,411,381,018.12/12,357,114.70 - Step 6: Final answer
x = 15,386,392.05
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Similar ratio
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1.5x scale
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.