Finding the Fourth Proportional to 77,187,221.65, 106,520,214.98 and 41,906,510.99
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Solution
The fourth proportional to 77,187,221.65, 106,520,214.98 and 41,906,510.99 is: 57,831,989.08
Step by Step Solution
- Step 1: Write the proportion equation
77,187,221.65 : 106,520,214.98 = 41,906,510.99 : x - Step 2: Convert to fraction form
77,187,221.65/106,520,214.98 = 41,906,510.99/x - Step 3: Cross multiply
77,187,221.65x = 106,520,214.98 × 41,906,510.99 - Step 4: Simplify right side
77,187,221.65x = 4,463,890,559,773,300.50 - Step 5: Solve for x
x = 4,463,890,559,773,300.50/77,187,221.65 - Step 6: Final answer
x = 57,831,989.08
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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.