Finding the Fourth Proportional to 147,777,817.60, 203,939,686.40 and 82,587,719.68
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Solution
The fourth proportional to 147,777,817.60, 203,939,686.40 and 82,587,719.68 is: 113,974,572.95
Step by Step Solution
- Step 1: Write the proportion equation
147,777,817.60 : 203,939,686.40 = 82,587,719.68 : x - Step 2: Convert to fraction form
147,777,817.60/203,939,686.40 = 82,587,719.68/x - Step 3: Cross multiply
147,777,817.60x = 203,939,686.40 × 82,587,719.68 - Step 4: Simplify right side
147,777,817.60x = 16,842,913,652,030,310 - Step 5: Solve for x
x = 16,842,913,652,030,310/147,777,817.60 - Step 6: Final answer
x = 113,974,572.95
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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.