Finding the Fourth Proportional to 298,576,423.17, 411,843,117.69 and 198,102,685.95
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Solution
The fourth proportional to 298,576,423.17, 411,843,117.69 and 198,102,685.95 is: 273,254,086.64
Step by Step Solution
- Step 1: Write the proportion equation
298,576,423.17 : 411,843,117.69 = 198,102,685.95 : x - Step 2: Convert to fraction form
298,576,423.17/411,843,117.69 = 198,102,685.95/x - Step 3: Cross multiply
298,576,423.17x = 411,843,117.69 × 198,102,685.95 - Step 4: Simplify right side
298,576,423.17x = 81,587,227,804,410,960 - Step 5: Solve for x
x = 81,587,227,804,410,960/298,576,423.17 - Step 6: Final answer
x = 273,254,086.64
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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.