Finding the Fourth Proportional to 77,124,857.99, 115,696,065.63 and 27,963,862.88
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Solution
The fourth proportional to 77,124,857.99, 115,696,065.63 and 27,963,862.88 is: 41,948,977.27
Step by Step Solution
- Step 1: Write the proportion equation
77,124,857.99 : 115,696,065.63 = 27,963,862.88 : x - Step 2: Convert to fraction form
77,124,857.99/115,696,065.63 = 27,963,862.88/x - Step 3: Cross multiply
77,124,857.99x = 115,696,065.63 × 27,963,862.88 - Step 4: Simplify right side
77,124,857.99x = 3,235,308,914,911,692.50 - Step 5: Solve for x
x = 3,235,308,914,911,692.50/77,124,857.99 - Step 6: Final answer
x = 41,948,977.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.