Finding the Fourth Proportional to 1,180,814,336.38, 1,771,228,125.84 and 393,865,828.77
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Solution
The fourth proportional to 1,180,814,336.38, 1,771,228,125.84 and 393,865,828.77 is: 590,800,951.71
Step by Step Solution
- Step 1: Write the proportion equation
1,180,814,336.38 : 1,771,228,125.84 = 393,865,828.77 : x - Step 2: Convert to fraction form
1,180,814,336.38/1,771,228,125.84 = 393,865,828.77/x - Step 3: Cross multiply
1,180,814,336.38x = 1,771,228,125.84 × 393,865,828.77 - Step 4: Simplify right side
1,180,814,336.38x = 697,626,233,721,769,472 - Step 5: Solve for x
x = 697,626,233,721,769,472/1,180,814,336.38 - Step 6: Final answer
x = 590,800,951.71
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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.