Finding the Fourth Proportional to 106,162,359.21, 146,428,588.76 and 70,862,366.84
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Solution
The fourth proportional to 106,162,359.21, 146,428,588.76 and 70,862,366.84 is: 97,739,692.76
Step by Step Solution
- Step 1: Write the proportion equation
106,162,359.21 : 146,428,588.76 = 70,862,366.84 : x - Step 2: Convert to fraction form
106,162,359.21/146,428,588.76 = 70,862,366.84/x - Step 3: Cross multiply
106,162,359.21x = 146,428,588.76 × 70,862,366.84 - Step 4: Simplify right side
106,162,359.21x = 10,376,276,371,488,164 - Step 5: Solve for x
x = 10,376,276,371,488,164/106,162,359.21 - Step 6: Final answer
x = 97,739,692.76
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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.