Finding the Fourth Proportional to 5,358,820.14, 7,395,255.72 and 2,911,479.66
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Solution
The fourth proportional to 5,358,820.14, 7,395,255.72 and 2,911,479.66 is: 4,017,887.53
Step by Step Solution
- Step 1: Write the proportion equation
5,358,820.14 : 7,395,255.72 = 2,911,479.66 : x - Step 2: Convert to fraction form
5,358,820.14/7,395,255.72 = 2,911,479.66/x - Step 3: Cross multiply
5,358,820.14x = 7,395,255.72 × 2,911,479.66 - Step 4: Simplify right side
5,358,820.14x = 21,531,136,609,278.66 - Step 5: Solve for x
x = 21,531,136,609,278.66/5,358,820.14 - Step 6: Final answer
x = 4,017,887.53
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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.