Finding the Fourth Proportional to 21,539,946.88, 29,725,224.06 and 11,750,360.68
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Solution
The fourth proportional to 21,539,946.88, 29,725,224.06 and 11,750,360.68 is: 16,215,550.85
Step by Step Solution
- Step 1: Write the proportion equation
21,539,946.88 : 29,725,224.06 = 11,750,360.68 : x - Step 2: Convert to fraction form
21,539,946.88/29,725,224.06 = 11,750,360.68/x - Step 3: Cross multiply
21,539,946.88x = 29,725,224.06 × 11,750,360.68 - Step 4: Simplify right side
21,539,946.88x = 349,282,103,998,813.94 - Step 5: Solve for x
x = 349,282,103,998,813.94/21,539,946.88 - Step 6: Final answer
x = 16,215,550.85
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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.