Finding the Fourth Proportional to 139,245,283.36, 192,163,676.93 and 83,499,779.66
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Solution
The fourth proportional to 139,245,283.36, 192,163,676.93 and 83,499,779.66 is: 115,232,805.70
Step by Step Solution
- Step 1: Write the proportion equation
139,245,283.36 : 192,163,676.93 = 83,499,779.66 : x - Step 2: Convert to fraction form
139,245,283.36/192,163,676.93 = 83,499,779.66/x - Step 3: Cross multiply
139,245,283.36x = 192,163,676.93 × 83,499,779.66 - Step 4: Simplify right side
139,245,283.36x = 16,045,624,681,892,926 - Step 5: Solve for x
x = 16,045,624,681,892,926/139,245,283.36 - Step 6: Final answer
x = 115,232,805.70
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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.