Finding the Fourth Proportional to 81,062,295.12, 121,593,726.99 and 19,651,203.90
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Solution
The fourth proportional to 81,062,295.12, 121,593,726.99 and 19,651,203.90 is: 29,476,874.77
Step by Step Solution
- Step 1: Write the proportion equation
81,062,295.12 : 121,593,726.99 = 19,651,203.90 : x - Step 2: Convert to fraction form
81,062,295.12/121,593,726.99 = 19,651,203.90/x - Step 3: Cross multiply
81,062,295.12x = 121,593,726.99 × 19,651,203.90 - Step 4: Simplify right side
81,062,295.12x = 2,389,463,122,041,423 - Step 5: Solve for x
x = 2,389,463,122,041,423/81,062,295.12 - Step 6: Final answer
x = 29,476,874.77
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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.