Finding the Fourth Proportional to 276,253,048.99, 381,215,817.48 and 157,164,425.47
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Solution
The fourth proportional to 276,253,048.99, 381,215,817.48 and 157,164,425.47 is: 216,879,289.31
Step by Step Solution
- Step 1: Write the proportion equation
276,253,048.99 : 381,215,817.48 = 157,164,425.47 : x - Step 2: Convert to fraction form
276,253,048.99/381,215,817.48 = 157,164,425.47/x - Step 3: Cross multiply
276,253,048.99x = 381,215,817.48 × 157,164,425.47 - Step 4: Simplify right side
276,253,048.99x = 59,913,564,934,320,584 - Step 5: Solve for x
x = 59,913,564,934,320,584/276,253,048.99 - Step 6: Final answer
x = 216,879,289.31
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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.