Finding the Fourth Proportional to 1,997,678,933.28, 2,756,776,621.68 and 1,105,607,391.84
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Solution
The fourth proportional to 1,997,678,933.28, 2,756,776,621.68 and 1,105,607,391.84 is: 1,525,726,962.33
Step by Step Solution
- Step 1: Write the proportion equation
1,997,678,933.28 : 2,756,776,621.68 = 1,105,607,391.84 : x - Step 2: Convert to fraction form
1,997,678,933.28/2,756,776,621.68 = 1,105,607,391.84/x - Step 3: Cross multiply
1,997,678,933.28x = 2,756,776,621.68 × 1,105,607,391.84 - Step 4: Simplify right side
1,997,678,933.28x = 3,047,912,610,581,110,784 - Step 5: Solve for x
x = 3,047,912,610,581,110,784/1,997,678,933.28 - Step 6: Final answer
x = 1,525,726,962.33
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.