Finding the Fourth Proportional to 38,447,398.76, 53,057,571.99 and 20,806,302.14
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Solution
The fourth proportional to 38,447,398.76, 53,057,571.99 and 20,806,302.14 is: 28,712,784.46
Step by Step Solution
- Step 1: Write the proportion equation
38,447,398.76 : 53,057,571.99 = 20,806,302.14 : x - Step 2: Convert to fraction form
38,447,398.76/53,057,571.99 = 20,806,302.14/x - Step 3: Cross multiply
38,447,398.76x = 53,057,571.99 × 20,806,302.14 - Step 4: Simplify right side
38,447,398.76x = 1,103,931,873,792,897.25 - Step 5: Solve for x
x = 1,103,931,873,792,897.25/38,447,398.76 - Step 6: Final answer
x = 28,712,784.46
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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.