Finding the Fourth Proportional to 251,266,388.70, 346,742,644.14 and 139,754,830.80
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Solution
The fourth proportional to 251,266,388.70, 346,742,644.14 and 139,754,830.80 is: 192,858,900.92
Step by Step Solution
- Step 1: Write the proportion equation
251,266,388.70 : 346,742,644.14 = 139,754,830.80 : x - Step 2: Convert to fraction form
251,266,388.70/346,742,644.14 = 139,754,830.80/x - Step 3: Cross multiply
251,266,388.70x = 346,742,644.14 × 139,754,830.80 - Step 4: Simplify right side
251,266,388.70x = 48,458,959,562,930,312 - Step 5: Solve for x
x = 48,458,959,562,930,312/251,266,388.70 - Step 6: Final answer
x = 192,858,900.92
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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.