Finding the Fourth Proportional to 13,569,643.27, 18,725,792.20 and 7,374,542.95
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Solution
The fourth proportional to 13,569,643.27, 18,725,792.20 and 7,374,542.95 is: 10,176,697.80
Step by Step Solution
- Step 1: Write the proportion equation
13,569,643.27 : 18,725,792.20 = 7,374,542.95 : x - Step 2: Convert to fraction form
13,569,643.27/18,725,792.20 = 7,374,542.95/x - Step 3: Cross multiply
13,569,643.27x = 18,725,792.20 × 7,374,542.95 - Step 4: Simplify right side
13,569,643.27x = 138,094,158,856,645.89 - Step 5: Solve for x
x = 138,094,158,856,645.89/13,569,643.27 - Step 6: Final answer
x = 10,176,697.80
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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.