Finding the Fourth Proportional to 115,106,849.20, 172,350,875.70 and 87,682,500.70
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Solution
The fourth proportional to 115,106,849.20, 172,350,875.70 and 87,682,500.70 is: 131,288,067.43
Step by Step Solution
- Step 1: Write the proportion equation
115,106,849.20 : 172,350,875.70 = 87,682,500.70 : x - Step 2: Convert to fraction form
115,106,849.20/172,350,875.70 = 87,682,500.70/x - Step 3: Cross multiply
115,106,849.20x = 172,350,875.70 × 87,682,500.70 - Step 4: Simplify right side
115,106,849.20x = 15,112,155,779,210,862 - Step 5: Solve for x
x = 15,112,155,779,210,862/115,106,849.20 - Step 6: Final answer
x = 131,288,067.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.