Finding the Fourth Proportional to 393,198,301,443.63, 589,824,087,334.44 and 138,196,682,756.99
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Solution
The fourth proportional to 393,198,301,443.63, 589,824,087,334.44 and 138,196,682,756.99 is: 207,304,385,549.27
Step by Step Solution
- Step 1: Write the proportion equation
393,198,301,443.63 : 589,824,087,334.44 = 138,196,682,756.99 : x - Step 2: Convert to fraction form
393,198,301,443.63/589,824,087,334.44 = 138,196,682,756.99/x - Step 3: Cross multiply
393,198,301,443.63x = 589,824,087,334.44 × 138,196,682,756.99 - Step 4: Simplify right side
393,198,301,443.63x = 81,511,732,279,788,752,076,800 - Step 5: Solve for x
x = 81,511,732,279,788,752,076,800/393,198,301,443.63 - Step 6: Final answer
x = 207,304,385,549.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.