Finding the Fourth Proportional to 118,116,686.80, 177,175,030.20 and 66,248,045.20
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Solution
The fourth proportional to 118,116,686.80, 177,175,030.20 and 66,248,045.20 is: 99,372,067.80
Step by Step Solution
- Step 1: Write the proportion equation
118,116,686.80 : 177,175,030.20 = 66,248,045.20 : x - Step 2: Convert to fraction form
118,116,686.80/177,175,030.20 = 66,248,045.20/x - Step 3: Cross multiply
118,116,686.80x = 177,175,030.20 × 66,248,045.20 - Step 4: Simplify right side
118,116,686.80x = 11,737,499,409,000,964 - Step 5: Solve for x
x = 11,737,499,409,000,964/118,116,686.80 - Step 6: Final answer
x = 99,372,067.80
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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.