Finding the Fourth Proportional to 3,889,303,255.07, 5,367,238,754.34 and 2,129,170,663.07
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Solution
The fourth proportional to 3,889,303,255.07, 5,367,238,754.34 and 2,129,170,663.07 is: 2,938,255,658.65
Step by Step Solution
- Step 1: Write the proportion equation
3,889,303,255.07 : 5,367,238,754.34 = 2,129,170,663.07 : x - Step 2: Convert to fraction form
3,889,303,255.07/5,367,238,754.34 = 2,129,170,663.07/x - Step 3: Cross multiply
3,889,303,255.07x = 5,367,238,754.34 × 2,129,170,663.07 - Step 4: Simplify right side
3,889,303,255.07x = 11,427,767,297,406,263,296 - Step 5: Solve for x
x = 11,427,767,297,406,263,296/3,889,303,255.07 - Step 6: Final answer
x = 2,938,255,658.65
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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.