Finding the Fourth Proportional to 89,630,071.40, 134,445,107.10 and 88,779,765.80
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Solution
The fourth proportional to 89,630,071.40, 134,445,107.10 and 88,779,765.80 is: 133,169,648.70
Step by Step Solution
- Step 1: Write the proportion equation
89,630,071.40 : 134,445,107.10 = 88,779,765.80 : x - Step 2: Convert to fraction form
89,630,071.40/134,445,107.10 = 88,779,765.80/x - Step 3: Cross multiply
89,630,071.40x = 134,445,107.10 × 88,779,765.80 - Step 4: Simplify right side
89,630,071.40x = 11,936,005,121,293,916 - Step 5: Solve for x
x = 11,936,005,121,293,916/89,630,071.40 - Step 6: Final answer
x = 133,169,648.70
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1.5x scale
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.