Finding the Fourth Proportional to 498,639,165.45, 747,958,748.18 and 135,133,521.45
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Solution
The fourth proportional to 498,639,165.45, 747,958,748.18 and 135,133,521.45 is: 202,700,282.18
Step by Step Solution
- Step 1: Write the proportion equation
498,639,165.45 : 747,958,748.18 = 135,133,521.45 : x - Step 2: Convert to fraction form
498,639,165.45/747,958,748.18 = 135,133,521.45/x - Step 3: Cross multiply
498,639,165.45x = 747,958,748.18 × 135,133,521.45 - Step 4: Simplify right side
498,639,165.45x = 101,074,299,540,221,488 - Step 5: Solve for x
x = 101,074,299,540,221,488/498,639,165.45 - Step 6: Final answer
x = 202,700,282.18
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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.