Finding the Fourth Proportional to 7,515,808.74, 11,275,117.47 and 3,417,430.86
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Solution
The fourth proportional to 7,515,808.74, 11,275,117.47 and 3,417,430.86 is: 5,126,784.85
Step by Step Solution
- Step 1: Write the proportion equation
7,515,808.74 : 11,275,117.47 = 3,417,430.86 : x - Step 2: Convert to fraction form
7,515,808.74/11,275,117.47 = 3,417,430.86/x - Step 3: Cross multiply
7,515,808.74x = 11,275,117.47 × 3,417,430.86 - Step 4: Simplify right side
7,515,808.74x = 38,531,934,392,103.12 - Step 5: Solve for x
x = 38,531,934,392,103.12/7,515,808.74 - Step 6: Final answer
x = 5,126,784.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.