Finding the Fourth Proportional to 485,588,029.79, 670,070,970.74 and 273,883,193.03
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Solution
The fourth proportional to 485,588,029.79, 670,070,970.74 and 273,883,193.03 is: 377,935,957.57
Step by Step Solution
- Step 1: Write the proportion equation
485,588,029.79 : 670,070,970.74 = 273,883,193.03 : x - Step 2: Convert to fraction form
485,588,029.79/670,070,970.74 = 273,883,193.03/x - Step 3: Cross multiply
485,588,029.79x = 670,070,970.74 × 273,883,193.03 - Step 4: Simplify right side
485,588,029.79x = 183,521,177,025,342,784 - Step 5: Solve for x
x = 183,521,177,025,342,784/485,588,029.79 - Step 6: Final answer
x = 377,935,957.57
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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.