Finding the Fourth Proportional to 189,026,656.67, 260,683,430.15 and 129,574,352.00
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Solution
The fourth proportional to 189,026,656.67, 260,683,430.15 and 129,574,352.00 is: 178,693,773.32
Step by Step Solution
- Step 1: Write the proportion equation
189,026,656.67 : 260,683,430.15 = 129,574,352.00 : x - Step 2: Convert to fraction form
189,026,656.67/260,683,430.15 = 129,574,352.00/x - Step 3: Cross multiply
189,026,656.67x = 260,683,430.15 × 129,574,352.00 - Step 4: Simplify right side
189,026,656.67x = 33,777,886,536,872,228 - Step 5: Solve for x
x = 33,777,886,536,872,228/189,026,656.67 - Step 6: Final answer
x = 178,693,773.32
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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.