Finding the Fourth Proportional to 1,020,240,831.05, 1,530,361,246.58 and 330,217,836.65
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Solution
The fourth proportional to 1,020,240,831.05, 1,530,361,246.58 and 330,217,836.65 is: 495,326,754.98
Step by Step Solution
- Step 1: Write the proportion equation
1,020,240,831.05 : 1,530,361,246.58 = 330,217,836.65 : x - Step 2: Convert to fraction form
1,020,240,831.05/1,530,361,246.58 = 330,217,836.65/x - Step 3: Cross multiply
1,020,240,831.05x = 1,530,361,246.58 × 330,217,836.65 - Step 4: Simplify right side
1,020,240,831.05x = 505,352,580,136,993,728 - Step 5: Solve for x
x = 505,352,580,136,993,728/1,020,240,831.05 - Step 6: Final answer
x = 495,326,754.98
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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.