Finding the Fourth Proportional to 1,575,028,922.88, 2,173,562,713.26 and 870,197,129.40
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Solution
The fourth proportional to 1,575,028,922.88, 2,173,562,713.26 and 870,197,129.40 is: 1,200,884,635.31
Step by Step Solution
- Step 1: Write the proportion equation
1,575,028,922.88 : 2,173,562,713.26 = 870,197,129.40 : x - Step 2: Convert to fraction form
1,575,028,922.88/2,173,562,713.26 = 870,197,129.40/x - Step 3: Cross multiply
1,575,028,922.88x = 2,173,562,713.26 × 870,197,129.40 - Step 4: Simplify right side
1,575,028,922.88x = 1,891,428,033,649,727,488 - Step 5: Solve for x
x = 1,891,428,033,649,727,488/1,575,028,922.88 - Step 6: Final answer
x = 1,200,884,635.31
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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.