Finding the Fourth Proportional to 13,198,448,598.68, 18,214,204,264.23 and 7,177,306,154.73
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Solution
The fourth proportional to 13,198,448,598.68, 18,214,204,264.23 and 7,177,306,154.73 is: 9,904,870,211.96
Step by Step Solution
- Step 1: Write the proportion equation
13,198,448,598.68 : 18,214,204,264.23 = 7,177,306,154.73 : x - Step 2: Convert to fraction form
13,198,448,598.68/18,214,204,264.23 = 7,177,306,154.73/x - Step 3: Cross multiply
13,198,448,598.68x = 18,214,204,264.23 × 7,177,306,154.73 - Step 4: Simplify right side
13,198,448,598.68x = 130,728,920,369,198,579,712 - Step 5: Solve for x
x = 130,728,920,369,198,579,712/13,198,448,598.68 - Step 6: Final answer
x = 9,904,870,211.96
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1.5x scale
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.