Finding the Fourth Proportional to 71,423,349.13, 98,565,049.41 and 39,634,171.34
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Solution
The fourth proportional to 71,423,349.13, 98,565,049.41 and 39,634,171.34 is: 54,695,615.71
Step by Step Solution
- Step 1: Write the proportion equation
71,423,349.13 : 98,565,049.41 = 39,634,171.34 : x - Step 2: Convert to fraction form
71,423,349.13/98,565,049.41 = 39,634,171.34/x - Step 3: Cross multiply
71,423,349.13x = 98,565,049.41 × 39,634,171.34 - Step 4: Simplify right side
71,423,349.13x = 3,906,544,056,451,506 - Step 5: Solve for x
x = 3,906,544,056,451,506/71,423,349.13 - Step 6: Final answer
x = 54,695,615.71
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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.