Finding the Fourth Proportional to 317,953,648.80, 476,930,473.20 and 266,935,312.80
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Solution
The fourth proportional to 317,953,648.80, 476,930,473.20 and 266,935,312.80 is: 400,402,969.20
Step by Step Solution
- Step 1: Write the proportion equation
317,953,648.80 : 476,930,473.20 = 266,935,312.80 : x - Step 2: Convert to fraction form
317,953,648.80/476,930,473.20 = 266,935,312.80/x - Step 3: Cross multiply
317,953,648.80x = 476,930,473.20 × 266,935,312.80 - Step 4: Simplify right side
317,953,648.80x = 127,309,585,047,494,016 - Step 5: Solve for x
x = 127,309,585,047,494,016/317,953,648.80 - Step 6: Final answer
x = 400,402,969.20
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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.