Finding the Fourth Proportional to 782,747,518.08, 1,080,192,269.79 and 430,329,504.81
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Solution
The fourth proportional to 782,747,518.08, 1,080,192,269.79 and 430,329,504.81 is: 593,855,098.64
Step by Step Solution
- Step 1: Write the proportion equation
782,747,518.08 : 1,080,192,269.79 = 430,329,504.81 : x - Step 2: Convert to fraction form
782,747,518.08/1,080,192,269.79 = 430,329,504.81/x - Step 3: Cross multiply
782,747,518.08x = 1,080,192,269.79 × 430,329,504.81 - Step 4: Simplify right side
782,747,518.08x = 464,838,604,558,320,640 - Step 5: Solve for x
x = 464,838,604,558,320,640/782,747,518.08 - Step 6: Final answer
x = 593,855,098.64
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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.