Finding the Fourth Proportional to 841,393,530.65, 1,267,833,416.33 and 691,399,622.81
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Solution
The fourth proportional to 841,393,530.65, 1,267,833,416.33 and 691,399,622.81 is: 1,041,818,737.49
Step by Step Solution
- Step 1: Write the proportion equation
841,393,530.65 : 1,267,833,416.33 = 691,399,622.81 : x - Step 2: Convert to fraction form
841,393,530.65/1,267,833,416.33 = 691,399,622.81/x - Step 3: Cross multiply
841,393,530.65x = 1,267,833,416.33 × 691,399,622.81 - Step 4: Simplify right side
841,393,530.65x = 876,579,545,836,475,520 - Step 5: Solve for x
x = 876,579,545,836,475,520/841,393,530.65 - Step 6: Final answer
x = 1,041,818,737.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.