Finding the Fourth Proportional to 274,752,143.80, 412,128,215.70 and 194,130,575.80
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Solution
The fourth proportional to 274,752,143.80, 412,128,215.70 and 194,130,575.80 is: 291,195,863.70
Step by Step Solution
- Step 1: Write the proportion equation
274,752,143.80 : 412,128,215.70 = 194,130,575.80 : x - Step 2: Convert to fraction form
274,752,143.80/412,128,215.70 = 194,130,575.80/x - Step 3: Cross multiply
274,752,143.80x = 412,128,215.70 × 194,130,575.80 - Step 4: Simplify right side
274,752,143.80x = 80,006,687,817,267,600 - Step 5: Solve for x
x = 80,006,687,817,267,600/274,752,143.80 - Step 6: Final answer
x = 291,195,863.70
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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.