Finding the Fourth Proportional to 42,742,531.72, 58,984,744.21 and 23,163,419.98
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Solution
The fourth proportional to 42,742,531.72, 58,984,744.21 and 23,163,419.98 is: 31,965,546.90
Step by Step Solution
- Step 1: Write the proportion equation
42,742,531.72 : 58,984,744.21 = 23,163,419.98 : x - Step 2: Convert to fraction form
42,742,531.72/58,984,744.21 = 23,163,419.98/x - Step 3: Cross multiply
42,742,531.72x = 58,984,744.21 × 23,163,419.98 - Step 4: Simplify right side
42,742,531.72x = 1,366,288,402,343,733 - Step 5: Solve for x
x = 1,366,288,402,343,733/42,742,531.72 - Step 6: Final answer
x = 31,965,546.90
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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.