Finding the Fourth Proportional to 276,905,651.13, 382,247,460.18 and 172,535,289.75
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Solution
The fourth proportional to 276,905,651.13, 382,247,460.18 and 172,535,289.75 is: 238,172,012.85
Step by Step Solution
- Step 1: Write the proportion equation
276,905,651.13 : 382,247,460.18 = 172,535,289.75 : x - Step 2: Convert to fraction form
276,905,651.13/382,247,460.18 = 172,535,289.75/x - Step 3: Cross multiply
276,905,651.13x = 382,247,460.18 × 172,535,289.75 - Step 4: Simplify right side
276,905,651.13x = 65,951,176,298,357,888 - Step 5: Solve for x
x = 65,951,176,298,357,888/276,905,651.13 - Step 6: Final answer
x = 238,172,012.85
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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.