Finding the Fourth Proportional to 19,979,352,868.20, 29,966,696,470.71 and 8,027,121,382.80
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Solution
The fourth proportional to 19,979,352,868.20, 29,966,696,470.71 and 8,027,121,382.80 is: 12,039,744,810.49
Step by Step Solution
- Step 1: Write the proportion equation
19,979,352,868.20 : 29,966,696,470.71 = 8,027,121,382.80 : x - Step 2: Convert to fraction form
19,979,352,868.20/29,966,696,470.71 = 8,027,121,382.80/x - Step 3: Cross multiply
19,979,352,868.20x = 29,966,696,470.71 × 8,027,121,382.80 - Step 4: Simplify right side
19,979,352,868.20x = 240,546,310,011,913,535,488 - Step 5: Solve for x
x = 240,546,310,011,913,535,488/19,979,352,868.20 - Step 6: Final answer
x = 12,039,744,810.49
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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.