Finding the Fourth Proportional to 239,624,902.17, 330,588,423.30 and 139,136,176.62
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Solution
The fourth proportional to 239,624,902.17, 330,588,423.30 and 139,136,176.62 is: 191,953,377.28
Step by Step Solution
- Step 1: Write the proportion equation
239,624,902.17 : 330,588,423.30 = 139,136,176.62 : x - Step 2: Convert to fraction form
239,624,902.17/330,588,423.30 = 139,136,176.62/x - Step 3: Cross multiply
239,624,902.17x = 330,588,423.30 × 139,136,176.62 - Step 4: Simplify right side
239,624,902.17x = 45,996,809,252,796,128 - Step 5: Solve for x
x = 45,996,809,252,796,128/239,624,902.17 - Step 6: Final answer
x = 191,953,377.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.