Finding the Fourth Proportional to 28,817,523.05, 39,768,495.71 and 15,764,501.70
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Solution
The fourth proportional to 28,817,523.05, 39,768,495.71 and 15,764,501.70 is: 21,755,184.07
Step by Step Solution
- Step 1: Write the proportion equation
28,817,523.05 : 39,768,495.71 = 15,764,501.70 : x - Step 2: Convert to fraction form
28,817,523.05/39,768,495.71 = 15,764,501.70/x - Step 3: Cross multiply
28,817,523.05x = 39,768,495.71 × 15,764,501.70 - Step 4: Simplify right side
28,817,523.05x = 626,930,518,147,915.12 - Step 5: Solve for x
x = 626,930,518,147,915.12/28,817,523.05 - Step 6: Final answer
x = 21,755,184.07
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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.