Finding the Fourth Proportional to 459,678,560.22, 689,498,550.99 and 213,950,673.81
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Solution
The fourth proportional to 459,678,560.22, 689,498,550.99 and 213,950,673.81 is: 320,917,032.77
Step by Step Solution
- Step 1: Write the proportion equation
459,678,560.22 : 689,498,550.99 = 213,950,673.81 : x - Step 2: Convert to fraction form
459,678,560.22/689,498,550.99 = 213,950,673.81/x - Step 3: Cross multiply
459,678,560.22x = 689,498,550.99 × 213,950,673.81 - Step 4: Simplify right side
459,678,560.22x = 147,518,679,575,329,152 - Step 5: Solve for x
x = 147,518,679,575,329,152/459,678,560.22 - Step 6: Final answer
x = 320,917,032.77
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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.