Finding the Fourth Proportional to 4,973,699,811.78, 6,861,227,888.34 and 2,965,119,634.44
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Solution
The fourth proportional to 4,973,699,811.78, 6,861,227,888.34 and 2,965,119,634.44 is: 4,090,387,899.95
Step by Step Solution
- Step 1: Write the proportion equation
4,973,699,811.78 : 6,861,227,888.34 = 2,965,119,634.44 : x - Step 2: Convert to fraction form
4,973,699,811.78/6,861,227,888.34 = 2,965,119,634.44/x - Step 3: Cross multiply
4,973,699,811.78x = 6,861,227,888.34 × 2,965,119,634.44 - Step 4: Simplify right side
4,973,699,811.78x = 20,344,361,528,084,234,240 - Step 5: Solve for x
x = 20,344,361,528,084,234,240/4,973,699,811.78 - Step 6: Final answer
x = 4,090,387,899.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.