Finding the Fourth Proportional to 100,849,190.91, 139,170,468.75 and 56,197,044.99
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Solution
The fourth proportional to 100,849,190.91, 139,170,468.75 and 56,197,044.99 is: 77,551,133.76
Step by Step Solution
- Step 1: Write the proportion equation
100,849,190.91 : 139,170,468.75 = 56,197,044.99 : x - Step 2: Convert to fraction form
100,849,190.91/139,170,468.75 = 56,197,044.99/x - Step 3: Cross multiply
100,849,190.91x = 139,170,468.75 × 56,197,044.99 - Step 4: Simplify right side
100,849,190.91x = 7,820,969,093,623,139 - Step 5: Solve for x
x = 7,820,969,093,623,139/100,849,190.91 - Step 6: Final answer
x = 77,551,133.76
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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.