Finding the Fourth Proportional to 118,368,000.90, 177,552,001.35 and 85,867,431.30
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Solution
The fourth proportional to 118,368,000.90, 177,552,001.35 and 85,867,431.30 is: 128,801,146.95
Step by Step Solution
- Step 1: Write the proportion equation
118,368,000.90 : 177,552,001.35 = 85,867,431.30 : x - Step 2: Convert to fraction form
118,368,000.90/177,552,001.35 = 85,867,431.30/x - Step 3: Cross multiply
118,368,000.90x = 177,552,001.35 × 85,867,431.30 - Step 4: Simplify right side
118,368,000.90x = 15,245,934,278,098,632 - Step 5: Solve for x
x = 15,245,934,278,098,632/118,368,000.90 - Step 6: Final answer
x = 128,801,146.95
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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.