Finding the Fourth Proportional to 171,679,497.40, 257,519,246.10 and 164,983,340.80
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Solution
The fourth proportional to 171,679,497.40, 257,519,246.10 and 164,983,340.80 is: 247,475,011.20
Step by Step Solution
- Step 1: Write the proportion equation
171,679,497.40 : 257,519,246.10 = 164,983,340.80 : x - Step 2: Convert to fraction form
171,679,497.40/257,519,246.10 = 164,983,340.80/x - Step 3: Cross multiply
171,679,497.40x = 257,519,246.10 × 164,983,340.80 - Step 4: Simplify right side
171,679,497.40x = 42,486,385,541,875,376 - Step 5: Solve for x
x = 42,486,385,541,875,376/171,679,497.40 - Step 6: Final answer
x = 247,475,011.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.