Finding the Fourth Proportional to 69,354,221.09, 95,708,823.36 and 38,416,383.28
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Solution
The fourth proportional to 69,354,221.09, 95,708,823.36 and 38,416,383.28 is: 53,014,607.95
Step by Step Solution
- Step 1: Write the proportion equation
69,354,221.09 : 95,708,823.36 = 38,416,383.28 : x - Step 2: Convert to fraction form
69,354,221.09/95,708,823.36 = 38,416,383.28/x - Step 3: Cross multiply
69,354,221.09x = 95,708,823.36 × 38,416,383.28 - Step 4: Simplify right side
69,354,221.09x = 3,676,786,840,997,033 - Step 5: Solve for x
x = 3,676,786,840,997,033/69,354,221.09 - Step 6: Final answer
x = 53,014,607.95
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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.