Finding the Fourth Proportional to 70,982,449.12, 97,956,074.97 and 38,387,401.12
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Solution
The fourth proportional to 70,982,449.12, 97,956,074.97 and 38,387,401.12 is: 52,974,773.18
Step by Step Solution
- Step 1: Write the proportion equation
70,982,449.12 : 97,956,074.97 = 38,387,401.12 : x - Step 2: Convert to fraction form
70,982,449.12/97,956,074.97 = 38,387,401.12/x - Step 3: Cross multiply
70,982,449.12x = 97,956,074.97 × 38,387,401.12 - Step 4: Simplify right side
70,982,449.12x = 3,760,279,142,014,181.50 - Step 5: Solve for x
x = 3,760,279,142,014,181.50/70,982,449.12 - Step 6: Final answer
x = 52,974,773.18
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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.