Finding the Fourth Proportional to 28,293,459.84, 39,044,974.95 and 15,416,403.84
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Solution
The fourth proportional to 28,293,459.84, 39,044,974.95 and 15,416,403.84 is: 21,274,637.50
Step by Step Solution
- Step 1: Write the proportion equation
28,293,459.84 : 39,044,974.95 = 15,416,403.84 : x - Step 2: Convert to fraction form
28,293,459.84/39,044,974.95 = 15,416,403.84/x - Step 3: Cross multiply
28,293,459.84x = 39,044,974.95 × 15,416,403.84 - Step 4: Simplify right side
28,293,459.84x = 601,933,101,751,883.88 - Step 5: Solve for x
x = 601,933,101,751,883.88/28,293,459.84 - Step 6: Final answer
x = 21,274,637.50
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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.