Finding the Fourth Proportional to 69,201,152.60, 103,801,728.90 and 40,432,479.80
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Solution
The fourth proportional to 69,201,152.60, 103,801,728.90 and 40,432,479.80 is: 60,648,719.70
Step by Step Solution
- Step 1: Write the proportion equation
69,201,152.60 : 103,801,728.90 = 40,432,479.80 : x - Step 2: Convert to fraction form
69,201,152.60/103,801,728.90 = 40,432,479.80/x - Step 3: Cross multiply
69,201,152.60x = 103,801,728.90 × 40,432,479.80 - Step 4: Simplify right side
69,201,152.60x = 4,196,961,306,954,326 - Step 5: Solve for x
x = 4,196,961,306,954,326/69,201,152.60 - Step 6: Final answer
x = 60,648,719.70
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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.