Finding the Fourth Proportional to 75,583,816.21, 104,299,012.56 and 42,090,764.95
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Solution
The fourth proportional to 75,583,816.21, 104,299,012.56 and 42,090,764.95 is: 58,081,550.29
Step by Step Solution
- Step 1: Write the proportion equation
75,583,816.21 : 104,299,012.56 = 42,090,764.95 : x - Step 2: Convert to fraction form
75,583,816.21/104,299,012.56 = 42,090,764.95/x - Step 3: Cross multiply
75,583,816.21x = 104,299,012.56 × 42,090,764.95 - Step 4: Simplify right side
75,583,816.21x = 4,390,025,222,180,058 - Step 5: Solve for x
x = 4,390,025,222,180,058/75,583,816.21 - Step 6: Final answer
x = 58,081,550.29
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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.