Finding the Fourth Proportional to 124,119,764.30, 171,285,266.61 and 71,939,067.20
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Solution
The fourth proportional to 124,119,764.30, 171,285,266.61 and 71,939,067.20 is: 99,275,908.02
Step by Step Solution
- Step 1: Write the proportion equation
124,119,764.30 : 171,285,266.61 = 71,939,067.20 : x - Step 2: Convert to fraction form
124,119,764.30/171,285,266.61 = 71,939,067.20/x - Step 3: Cross multiply
124,119,764.30x = 171,285,266.61 × 71,939,067.20 - Step 4: Simplify right side
124,119,764.30x = 12,322,102,304,170,280 - Step 5: Solve for x
x = 12,322,102,304,170,280/124,119,764.30 - Step 6: Final answer
x = 99,275,908.02
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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.