Finding the Fourth Proportional to 74,750,987.70, 112,126,481.55 and 74,750,987.70
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Solution
The fourth proportional to 74,750,987.70, 112,126,481.55 and 74,750,987.70 is: 112,126,481.55
Step by Step Solution
- Step 1: Write the proportion equation
74,750,987.70 : 112,126,481.55 = 74,750,987.70 : x - Step 2: Convert to fraction form
74,750,987.70/112,126,481.55 = 74,750,987.70/x - Step 3: Cross multiply
74,750,987.70x = 112,126,481.55 × 74,750,987.70 - Step 4: Simplify right side
74,750,987.70x = 8,381,565,243,188,327 - Step 5: Solve for x
x = 8,381,565,243,188,327/74,750,987.70 - Step 6: Final answer
x = 112,126,481.55
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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.