Finding the Fourth Proportional to 134,186,687.20, 201,280,030.80 and 121,006,950.40
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Solution
The fourth proportional to 134,186,687.20, 201,280,030.80 and 121,006,950.40 is: 181,510,425.60
Step by Step Solution
- Step 1: Write the proportion equation
134,186,687.20 : 201,280,030.80 = 121,006,950.40 : x - Step 2: Convert to fraction form
134,186,687.20/201,280,030.80 = 121,006,950.40/x - Step 3: Cross multiply
134,186,687.20x = 201,280,030.80 × 121,006,950.40 - Step 4: Simplify right side
134,186,687.20x = 24,356,282,703,526,076 - Step 5: Solve for x
x = 24,356,282,703,526,076/134,186,687.20 - Step 6: Final answer
x = 181,510,425.60
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1.5x scale
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.