Finding the Fourth Proportional to 71,753,402.80, 107,630,104.20 and 19,937,905.30
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Solution
The fourth proportional to 71,753,402.80, 107,630,104.20 and 19,937,905.30 is: 29,906,857.95
Step by Step Solution
- Step 1: Write the proportion equation
71,753,402.80 : 107,630,104.20 = 19,937,905.30 : x - Step 2: Convert to fraction form
71,753,402.80/107,630,104.20 = 19,937,905.30/x - Step 3: Cross multiply
71,753,402.80x = 107,630,104.20 × 19,937,905.30 - Step 4: Simplify right side
71,753,402.80x = 2,145,918,824,968,732.50 - Step 5: Solve for x
x = 2,145,918,824,968,732.50/71,753,402.80 - Step 6: Final answer
x = 29,906,857.95
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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.