Finding the Fourth Proportional to 71,357,119.51, 98,475,531.84 and 39,995,748.13
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Solution
The fourth proportional to 71,357,119.51, 98,475,531.84 and 39,995,748.13 is: 55,195,649.65
Step by Step Solution
- Step 1: Write the proportion equation
71,357,119.51 : 98,475,531.84 = 39,995,748.13 : x - Step 2: Convert to fraction form
71,357,119.51/98,475,531.84 = 39,995,748.13/x - Step 3: Cross multiply
71,357,119.51x = 98,475,531.84 × 39,995,748.13 - Step 4: Simplify right side
71,357,119.51x = 3,938,602,568,440,436 - Step 5: Solve for x
x = 3,938,602,568,440,436/71,357,119.51 - Step 6: Final answer
x = 55,195,649.65
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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.