Finding the Fourth Proportional to 12,475,618.70, 18,685,434.45 and 10,236,130.70
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Solution
The fourth proportional to 12,475,618.70, 18,685,434.45 and 10,236,130.70 is: 15,331,227.56
Step by Step Solution
- Step 1: Write the proportion equation
12,475,618.70 : 18,685,434.45 = 10,236,130.70 : x - Step 2: Convert to fraction form
12,475,618.70/18,685,434.45 = 10,236,130.70/x - Step 3: Cross multiply
12,475,618.70x = 18,685,434.45 × 10,236,130.70 - Step 4: Simplify right side
12,475,618.70x = 191,266,549,216,482.59 - Step 5: Solve for x
x = 191,266,549,216,482.59/12,475,618.70 - Step 6: Final answer
x = 15,331,227.56
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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.