Finding the Fourth Proportional to 141,030,129.49, 194,612,094.48 and 78,302,985.74
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Solution
The fourth proportional to 141,030,129.49, 194,612,094.48 and 78,302,985.74 is: 108,052,854.48
Step by Step Solution
- Step 1: Write the proportion equation
141,030,129.49 : 194,612,094.48 = 78,302,985.74 : x - Step 2: Convert to fraction form
141,030,129.49/194,612,094.48 = 78,302,985.74/x - Step 3: Cross multiply
141,030,129.49x = 194,612,094.48 × 78,302,985.74 - Step 4: Simplify right side
141,030,129.49x = 15,238,708,060,044,036 - Step 5: Solve for x
x = 15,238,708,060,044,036/141,030,129.49 - Step 6: Final answer
x = 108,052,854.48
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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.