Finding the Fourth Proportional to 6,643,917,376.80, 9,969,702,440.40 and 2,506,330,327.20
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Solution
The fourth proportional to 6,643,917,376.80, 9,969,702,440.40 and 2,506,330,327.20 is: 3,760,938,940.45
Step by Step Solution
- Step 1: Write the proportion equation
6,643,917,376.80 : 9,969,702,440.40 = 2,506,330,327.20 : x - Step 2: Convert to fraction form
6,643,917,376.80/9,969,702,440.40 = 2,506,330,327.20/x - Step 3: Cross multiply
6,643,917,376.80x = 9,969,702,440.40 × 2,506,330,327.20 - Step 4: Simplify right side
6,643,917,376.80x = 24,987,367,579,534,368,768 - Step 5: Solve for x
x = 24,987,367,579,534,368,768/6,643,917,376.80 - Step 6: Final answer
x = 3,760,938,940.45
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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.