Finding the Fourth Proportional to 90,383,032.12, 124,728,664.68 and 49,129,924.48
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Solution
The fourth proportional to 90,383,032.12, 124,728,664.68 and 49,129,924.48 is: 67,799,339.46
Step by Step Solution
- Step 1: Write the proportion equation
90,383,032.12 : 124,728,664.68 = 49,129,924.48 : x - Step 2: Convert to fraction form
90,383,032.12/124,728,664.68 = 49,129,924.48/x - Step 3: Cross multiply
90,383,032.12x = 124,728,664.68 × 49,129,924.48 - Step 4: Simplify right side
90,383,032.12x = 6,127,909,876,219,643 - Step 5: Solve for x
x = 6,127,909,876,219,643/90,383,032.12 - Step 6: Final answer
x = 67,799,339.46
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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.