Finding the Fourth Proportional to 90,008,644.28, 124,212,525.52 and 48,755,536.68
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Solution
The fourth proportional to 90,008,644.28, 124,212,525.52 and 48,755,536.68 is: 67,282,963.68
Step by Step Solution
- Step 1: Write the proportion equation
90,008,644.28 : 124,212,525.52 = 48,755,536.68 : x - Step 2: Convert to fraction form
90,008,644.28/124,212,525.52 = 48,755,536.68/x - Step 3: Cross multiply
90,008,644.28x = 124,212,525.52 × 48,755,536.68 - Step 4: Simplify right side
90,008,644.28x = 6,056,048,344,105,796 - Step 5: Solve for x
x = 6,056,048,344,105,796/90,008,644.28 - Step 6: Final answer
x = 67,282,963.68
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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.