Finding the Fourth Proportional to 90,015,114.84, 124,221,239.11 and 48,762,007.21
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Solution
The fourth proportional to 90,015,114.84, 124,221,239.11 and 48,762,007.21 is: 67,291,776.14
Step by Step Solution
- Step 1: Write the proportion equation
90,015,114.84 : 124,221,239.11 = 48,762,007.21 : x - Step 2: Convert to fraction form
90,015,114.84/124,221,239.11 = 48,762,007.21/x - Step 3: Cross multiply
90,015,114.84x = 124,221,239.11 × 48,762,007.21 - Step 4: Simplify right side
90,015,114.84x = 6,057,276,957,116,954 - Step 5: Solve for x
x = 6,057,276,957,116,954/90,015,114.84 - Step 6: Final answer
x = 67,291,776.14
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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.