Finding the Fourth Proportional to 15,774,278.19, 21,768,715.40 and 8,898,738.99
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Solution
The fourth proportional to 15,774,278.19, 21,768,715.40 and 8,898,738.99 is: 12,280,379.12
Step by Step Solution
- Step 1: Write the proportion equation
15,774,278.19 : 21,768,715.40 = 8,898,738.99 : x - Step 2: Convert to fraction form
15,774,278.19/21,768,715.40 = 8,898,738.99/x - Step 3: Cross multiply
15,774,278.19x = 21,768,715.40 × 8,898,738.99 - Step 4: Simplify right side
15,774,278.19x = 193,714,116,492,193.44 - Step 5: Solve for x
x = 193,714,116,492,193.44/15,774,278.19 - Step 6: Final answer
x = 12,280,379.12
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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.