Finding the Fourth Proportional to 421,206,962.80, 581,295,048.60 and 235,585,133.68
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Solution
The fourth proportional to 421,206,962.80, 581,295,048.60 and 235,585,133.68 is: 325,123,950.52
Step by Step Solution
- Step 1: Write the proportion equation
421,206,962.80 : 581,295,048.60 = 235,585,133.68 : x - Step 2: Convert to fraction form
421,206,962.80/581,295,048.60 = 235,585,133.68/x - Step 3: Cross multiply
421,206,962.80x = 581,295,048.60 × 235,585,133.68 - Step 4: Simplify right side
421,206,962.80x = 136,944,471,731,953,104 - Step 5: Solve for x
x = 136,944,471,731,953,104/421,206,962.80 - Step 6: Final answer
x = 325,123,950.52
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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.