Finding the Fourth Proportional to 397,527,247.21, 596,563,248.11 and 138,742,467.39
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Solution
The fourth proportional to 397,527,247.21, 596,563,248.11 and 138,742,467.39 is: 208,208,764.50
Step by Step Solution
- Step 1: Write the proportion equation
397,527,247.21 : 596,563,248.11 = 138,742,467.39 : x - Step 2: Convert to fraction form
397,527,247.21/596,563,248.11 = 138,742,467.39/x - Step 3: Cross multiply
397,527,247.21x = 596,563,248.11 × 138,742,467.39 - Step 4: Simplify right side
397,527,247.21x = 82,768,656,996,974,144 - Step 5: Solve for x
x = 82,768,656,996,974,144/397,527,247.21 - Step 6: Final answer
x = 208,208,764.50
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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.