Finding the Fourth Proportional to 75,015,921.94, 112,523,250.80 and 58,634,985.05
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Solution
The fourth proportional to 75,015,921.94, 112,523,250.80 and 58,634,985.05 is: 87,951,983.50
Step by Step Solution
- Step 1: Write the proportion equation
75,015,921.94 : 112,523,250.80 = 58,634,985.05 : x - Step 2: Convert to fraction form
75,015,921.94/112,523,250.80 = 58,634,985.05/x - Step 3: Cross multiply
75,015,921.94x = 112,523,250.80 × 58,634,985.05 - Step 4: Simplify right side
75,015,921.94x = 6,597,799,128,435,400 - Step 5: Solve for x
x = 6,597,799,128,435,400/75,015,921.94 - Step 6: Final answer
x = 87,951,983.50
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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.