Finding the Fourth Proportional to 436,626,809.70, 654,940,214.55 and 207,044,297.70
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Solution
The fourth proportional to 436,626,809.70, 654,940,214.55 and 207,044,297.70 is: 310,566,446.55
Step by Step Solution
- Step 1: Write the proportion equation
436,626,809.70 : 654,940,214.55 = 207,044,297.70 : x - Step 2: Convert to fraction form
436,626,809.70/654,940,214.55 = 207,044,297.70/x - Step 3: Cross multiply
436,626,809.70x = 654,940,214.55 × 207,044,297.70 - Step 4: Simplify right side
436,626,809.70x = 135,601,636,756,992,048 - Step 5: Solve for x
x = 135,601,636,756,992,048/436,626,809.70 - Step 6: Final answer
x = 310,566,446.55
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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.