Finding the Fourth Proportional to 19,811,935.80, 29,717,903.70 and 11,308,879.80
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Solution
The fourth proportional to 19,811,935.80, 29,717,903.70 and 11,308,879.80 is: 16,963,319.70
Step by Step Solution
- Step 1: Write the proportion equation
19,811,935.80 : 29,717,903.70 = 11,308,879.80 : x - Step 2: Convert to fraction form
19,811,935.80/29,717,903.70 = 11,308,879.80/x - Step 3: Cross multiply
19,811,935.80x = 29,717,903.70 × 11,308,879.80 - Step 4: Simplify right side
19,811,935.80x = 336,076,200,851,275.25 - Step 5: Solve for x
x = 336,076,200,851,275.25/19,811,935.80 - Step 6: Final answer
x = 16,963,319.70
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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.