Finding the Fourth Proportional to 157,467,903.80, 236,201,855.70 and 147,901,965.80
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Solution
The fourth proportional to 157,467,903.80, 236,201,855.70 and 147,901,965.80 is: 221,852,948.70
Step by Step Solution
- Step 1: Write the proportion equation
157,467,903.80 : 236,201,855.70 = 147,901,965.80 : x - Step 2: Convert to fraction form
157,467,903.80/236,201,855.70 = 147,901,965.80/x - Step 3: Cross multiply
157,467,903.80x = 236,201,855.70 × 147,901,965.80 - Step 4: Simplify right side
157,467,903.80x = 34,934,718,783,637,936 - Step 5: Solve for x
x = 34,934,718,783,637,936/157,467,903.80 - Step 6: Final answer
x = 221,852,948.70
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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.