Finding the Fourth Proportional to 638,481,950.72, 881,030,220 and 360,006,879.68
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Solution
The fourth proportional to 638,481,950.72, 881,030,220 and 360,006,879.68 is: 496,767,277.52
Step by Step Solution
- Step 1: Write the proportion equation
638,481,950.72 : 881,030,220 = 360,006,879.68 : x - Step 2: Convert to fraction form
638,481,950.72/881,030,220 = 360,006,879.68/x - Step 3: Cross multiply
638,481,950.72x = 881,030,220 × 360,006,879.68 - Step 4: Simplify right side
638,481,950.72x = 317,176,940,405,983,936 - Step 5: Solve for x
x = 317,176,940,405,983,936/638,481,950.72 - Step 6: Final answer
x = 496,767,277.52
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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.