Finding the Fourth Proportional to 55,416,689.60, 76,477,393.44 and 30,970,402.88
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Solution
The fourth proportional to 55,416,689.60, 76,477,393.44 and 30,970,402.88 is: 42,740,475.90
Step by Step Solution
- Step 1: Write the proportion equation
55,416,689.60 : 76,477,393.44 = 30,970,402.88 : x - Step 2: Convert to fraction form
55,416,689.60/76,477,393.44 = 30,970,402.88/x - Step 3: Cross multiply
55,416,689.60x = 76,477,393.44 × 30,970,402.88 - Step 4: Simplify right side
55,416,689.60x = 2,368,535,686,049,069 - Step 5: Solve for x
x = 2,368,535,686,049,069/55,416,689.60 - Step 6: Final answer
x = 42,740,475.90
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1.5x scale
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.