Finding the Fourth Proportional to 640,079,674.90, 960,119,512.35 and 629,876,007.70
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Solution
The fourth proportional to 640,079,674.90, 960,119,512.35 and 629,876,007.70 is: 944,814,011.55
Step by Step Solution
- Step 1: Write the proportion equation
640,079,674.90 : 960,119,512.35 = 629,876,007.70 : x - Step 2: Convert to fraction form
640,079,674.90/960,119,512.35 = 629,876,007.70/x - Step 3: Cross multiply
640,079,674.90x = 960,119,512.35 × 629,876,007.70 - Step 4: Simplify right side
640,079,674.90x = 604,756,245,353,888,896 - Step 5: Solve for x
x = 604,756,245,353,888,896/640,079,674.90 - Step 6: Final answer
x = 944,814,011.55
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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.