Finding the Fourth Proportional to 3,818,120,725.68, 5,271,427,421.78 and 2,614,476,169.74
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Solution
The fourth proportional to 3,818,120,725.68, 5,271,427,421.78 and 2,614,476,169.74 is: 3,609,634,782.38
Step by Step Solution
- Step 1: Write the proportion equation
3,818,120,725.68 : 5,271,427,421.78 = 2,614,476,169.74 : x - Step 2: Convert to fraction form
3,818,120,725.68/5,271,427,421.78 = 2,614,476,169.74/x - Step 3: Cross multiply
3,818,120,725.68x = 5,271,427,421.78 × 2,614,476,169.74 - Step 4: Simplify right side
3,818,120,725.68x = 13,782,021,374,744,702,976 - Step 5: Solve for x
x = 13,782,021,374,744,702,976/3,818,120,725.68 - Step 6: Final answer
x = 3,609,634,782.38
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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.