Finding the Fourth Proportional to 299,212,251.40, 412,881,437.46 and 173,739,920.68
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Solution
The fourth proportional to 299,212,251.40, 412,881,437.46 and 173,739,920.68 is: 239,742,817.54
Step by Step Solution
- Step 1: Write the proportion equation
299,212,251.40 : 412,881,437.46 = 173,739,920.68 : x - Step 2: Convert to fraction form
299,212,251.40/412,881,437.46 = 173,739,920.68/x - Step 3: Cross multiply
299,212,251.40x = 412,881,437.46 × 173,739,920.68 - Step 4: Simplify right side
299,212,251.40x = 71,733,988,194,544,776 - Step 5: Solve for x
x = 71,733,988,194,544,776/299,212,251.40 - Step 6: Final answer
x = 239,742,817.54
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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.