Finding the Fourth Proportional to 330,352,880.99, 455,701,042.28 and 198,158,703.71
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Solution
The fourth proportional to 330,352,880.99, 455,701,042.28 and 198,158,703.71 is: 273,347,480.87
Step by Step Solution
- Step 1: Write the proportion equation
330,352,880.99 : 455,701,042.28 = 198,158,703.71 : x - Step 2: Convert to fraction form
330,352,880.99/455,701,042.28 = 198,158,703.71/x - Step 3: Cross multiply
330,352,880.99x = 455,701,042.28 × 198,158,703.71 - Step 4: Simplify right side
330,352,880.99x = 90,301,127,816,509,904 - Step 5: Solve for x
x = 90,301,127,816,509,904/330,352,880.99 - Step 6: Final answer
x = 273,347,480.87
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.