Finding the Fourth Proportional to 124,747,006.40, 172,142,129.60 and 72,532,337.68
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Solution
The fourth proportional to 124,747,006.40, 172,142,129.60 and 72,532,337.68 is: 100,089,544.70
Step by Step Solution
- Step 1: Write the proportion equation
124,747,006.40 : 172,142,129.60 = 72,532,337.68 : x - Step 2: Convert to fraction form
124,747,006.40/172,142,129.60 = 72,532,337.68/x - Step 3: Cross multiply
124,747,006.40x = 172,142,129.60 × 72,532,337.68 - Step 4: Simplify right side
124,747,006.40x = 12,485,871,073,101,524 - Step 5: Solve for x
x = 12,485,871,073,101,524/124,747,006.40 - Step 6: Final answer
x = 100,089,544.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.