Finding the Fourth Proportional to 80,909,436.60, 121,364,154.90 and 79,565,743.80
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Solution
The fourth proportional to 80,909,436.60, 121,364,154.90 and 79,565,743.80 is: 119,348,615.70
Step by Step Solution
- Step 1: Write the proportion equation
80,909,436.60 : 121,364,154.90 = 79,565,743.80 : x - Step 2: Convert to fraction form
80,909,436.60/121,364,154.90 = 79,565,743.80/x - Step 3: Cross multiply
80,909,436.60x = 121,364,154.90 × 79,565,743.80 - Step 4: Simplify right side
80,909,436.60x = 9,656,429,255,276,914 - Step 5: Solve for x
x = 9,656,429,255,276,914/80,909,436.60 - Step 6: Final answer
x = 119,348,615.70
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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.