Finding the Fourth Proportional to 480,639,246.30, 720,958,869.45 and 299,240,718.30
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Solution
The fourth proportional to 480,639,246.30, 720,958,869.45 and 299,240,718.30 is: 448,861,077.45
Step by Step Solution
- Step 1: Write the proportion equation
480,639,246.30 : 720,958,869.45 = 299,240,718.30 : x - Step 2: Convert to fraction form
480,639,246.30/720,958,869.45 = 299,240,718.30/x - Step 3: Cross multiply
480,639,246.30x = 720,958,869.45 × 299,240,718.30 - Step 4: Simplify right side
480,639,246.30x = 215,740,249,958,973,952 - Step 5: Solve for x
x = 215,740,249,958,973,952/480,639,246.30 - Step 6: Final answer
x = 448,861,077.45
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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.