Finding the Fourth Proportional to 9,186,310,319.80, 13,779,465,479.70 and 2,643,208,727.80
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Solution
The fourth proportional to 9,186,310,319.80, 13,779,465,479.70 and 2,643,208,727.80 is: 3,964,813,091.70
Step by Step Solution
- Step 1: Write the proportion equation
9,186,310,319.80 : 13,779,465,479.70 = 2,643,208,727.80 : x - Step 2: Convert to fraction form
9,186,310,319.80/13,779,465,479.70 = 2,643,208,727.80/x - Step 3: Cross multiply
9,186,310,319.80x = 13,779,465,479.70 × 2,643,208,727.80 - Step 4: Simplify right side
9,186,310,319.80x = 36,422,003,420,361,859,072 - Step 5: Solve for x
x = 36,422,003,420,361,859,072/9,186,310,319.80 - Step 6: Final answer
x = 3,964,813,091.70
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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.