Finding the Fourth Proportional to 7,981,900,718.16, 11,974,041,601.56 and 2,939,369,460.63
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Solution
The fourth proportional to 7,981,900,718.16, 11,974,041,601.56 and 2,939,369,460.63 is: 4,409,492,606.67
Step by Step Solution
- Step 1: Write the proportion equation
7,981,900,718.16 : 11,974,041,601.56 = 2,939,369,460.63 : x - Step 2: Convert to fraction form
7,981,900,718.16/11,974,041,601.56 = 2,939,369,460.63/x - Step 3: Cross multiply
7,981,900,718.16x = 11,974,041,601.56 × 2,939,369,460.63 - Step 4: Simplify right side
7,981,900,718.16x = 35,196,132,203,938,598,912 - Step 5: Solve for x
x = 35,196,132,203,938,598,912/7,981,900,718.16 - Step 6: Final answer
x = 4,409,492,606.67
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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.