Finding the Fourth Proportional to 215,865,393.21, 323,820,781.70 and 70,310,297.07
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Solution
The fourth proportional to 215,865,393.21, 323,820,781.70 and 70,310,297.07 is: 105,472,836.66
Step by Step Solution
- Step 1: Write the proportion equation
215,865,393.21 : 323,820,781.70 = 70,310,297.07 : x - Step 2: Convert to fraction form
215,865,393.21/323,820,781.70 = 70,310,297.07/x - Step 3: Cross multiply
215,865,393.21x = 323,820,781.70 × 70,310,297.07 - Step 4: Simplify right side
215,865,393.21x = 22,767,935,358,415,064 - Step 5: Solve for x
x = 22,767,935,358,415,064/215,865,393.21 - Step 6: Final answer
x = 105,472,836.66
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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.