Finding the Fourth Proportional to 115,489,999.36, 173,178,311.92 and 57,130,248.80
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Solution
The fourth proportional to 115,489,999.36, 173,178,311.92 and 57,130,248.80 is: 85,667,331.38
Step by Step Solution
- Step 1: Write the proportion equation
115,489,999.36 : 173,178,311.92 = 57,130,248.80 : x - Step 2: Convert to fraction form
115,489,999.36/173,178,311.92 = 57,130,248.80/x - Step 3: Cross multiply
115,489,999.36x = 173,178,311.92 × 57,130,248.80 - Step 4: Simplify right side
115,489,999.36x = 9,893,720,046,753,604 - Step 5: Solve for x
x = 9,893,720,046,753,604/115,489,999.36 - Step 6: Final answer
x = 85,667,331.38
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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.