Finding the Fourth Proportional to 6,868,992,013.80, 10,303,488,020.70 and 6,385,262,605.80
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Solution
The fourth proportional to 6,868,992,013.80, 10,303,488,020.70 and 6,385,262,605.80 is: 9,577,893,908.70
Step by Step Solution
- Step 1: Write the proportion equation
6,868,992,013.80 : 10,303,488,020.70 = 6,385,262,605.80 : x - Step 2: Convert to fraction form
6,868,992,013.80/10,303,488,020.70 = 6,385,262,605.80/x - Step 3: Cross multiply
6,868,992,013.80x = 10,303,488,020.70 × 6,385,262,605.80 - Step 4: Simplify right side
6,868,992,013.80x = 65,790,476,767,883,976,704 - Step 5: Solve for x
x = 65,790,476,767,883,976,704/6,868,992,013.80 - Step 6: Final answer
x = 9,577,893,908.70
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1.5x scale
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.