Finding the Fourth Proportional to 120,203,996.74, 180,246,289.94 and 38,312,219.14
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Solution
The fourth proportional to 120,203,996.74, 180,246,289.94 and 38,312,219.14 is: 57,449,299.08
Step by Step Solution
- Step 1: Write the proportion equation
120,203,996.74 : 180,246,289.94 = 38,312,219.14 : x - Step 2: Convert to fraction form
120,203,996.74/180,246,289.94 = 38,312,219.14/x - Step 3: Cross multiply
120,203,996.74x = 180,246,289.94 × 38,312,219.14 - Step 4: Simplify right side
120,203,996.74x = 6,905,635,358,854,752 - Step 5: Solve for x
x = 6,905,635,358,854,752/120,203,996.74 - Step 6: Final answer
x = 57,449,299.08
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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.