Finding the Fourth Proportional to 10,249,743.64, 15,371,509.77 and 5,389,431.09
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Solution
The fourth proportional to 10,249,743.64, 15,371,509.77 and 5,389,431.09 is: 8,082,513.63
Step by Step Solution
- Step 1: Write the proportion equation
10,249,743.64 : 15,371,509.77 = 5,389,431.09 : x - Step 2: Convert to fraction form
10,249,743.64/15,371,509.77 = 5,389,431.09/x - Step 3: Cross multiply
10,249,743.64x = 15,371,509.77 × 5,389,431.09 - Step 4: Simplify right side
10,249,743.64x = 82,843,692,654,676.75 - Step 5: Solve for x
x = 82,843,692,654,676.75/10,249,743.64 - Step 6: Final answer
x = 8,082,513.63
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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.