Finding the Fourth Proportional to 6,457,742.22, 8,911,684.26 and 3,557,124.12
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Solution
The fourth proportional to 6,457,742.22, 8,911,684.26 and 3,557,124.12 is: 4,908,831.28
Step by Step Solution
- Step 1: Write the proportion equation
6,457,742.22 : 8,911,684.26 = 3,557,124.12 : x - Step 2: Convert to fraction form
6,457,742.22/8,911,684.26 = 3,557,124.12/x - Step 3: Cross multiply
6,457,742.22x = 8,911,684.26 × 3,557,124.12 - Step 4: Simplify right side
6,457,742.22x = 31,699,967,031,070.35 - Step 5: Solve for x
x = 31,699,967,031,070.35/6,457,742.22 - Step 6: Final answer
x = 4,908,831.28
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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.