Finding the Fourth Proportional to 120,035,605.36, 165,649,930.68 and 65,031,461.88
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Solution
The fourth proportional to 120,035,605.36, 165,649,930.68 and 65,031,461.88 is: 89,743,848.25
Step by Step Solution
- Step 1: Write the proportion equation
120,035,605.36 : 165,649,930.68 = 65,031,461.88 : x - Step 2: Convert to fraction form
120,035,605.36/165,649,930.68 = 65,031,461.88/x - Step 3: Cross multiply
120,035,605.36x = 165,649,930.68 × 65,031,461.88 - Step 4: Simplify right side
120,035,605.36x = 10,772,457,152,441,064 - Step 5: Solve for x
x = 10,772,457,152,441,064/120,035,605.36 - Step 6: Final answer
x = 89,743,848.25
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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.