Finding the Fourth Proportional to 19,722,641.87, 27,216,723.60 and 11,020,885.99
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Solution
The fourth proportional to 19,722,641.87, 27,216,723.60 and 11,020,885.99 is: 15,208,530.87
Step by Step Solution
- Step 1: Write the proportion equation
19,722,641.87 : 27,216,723.60 = 11,020,885.99 : x - Step 2: Convert to fraction form
19,722,641.87/27,216,723.60 = 11,020,885.99/x - Step 3: Cross multiply
19,722,641.87x = 27,216,723.60 × 11,020,885.99 - Step 4: Simplify right side
19,722,641.87x = 299,952,407,748,900.56 - Step 5: Solve for x
x = 299,952,407,748,900.56/19,722,641.87 - Step 6: Final answer
x = 15,208,530.87
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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.