Finding the Fourth Proportional to 124,437,859.20, 186,656,788.80 and 86,174,107.20
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Solution
The fourth proportional to 124,437,859.20, 186,656,788.80 and 86,174,107.20 is: 129,261,160.80
Step by Step Solution
- Step 1: Write the proportion equation
124,437,859.20 : 186,656,788.80 = 86,174,107.20 : x - Step 2: Convert to fraction form
124,437,859.20/186,656,788.80 = 86,174,107.20/x - Step 3: Cross multiply
124,437,859.20x = 186,656,788.80 × 86,174,107.20 - Step 4: Simplify right side
124,437,859.20x = 16,084,982,127,658,960 - Step 5: Solve for x
x = 16,084,982,127,658,960/124,437,859.20 - Step 6: Final answer
x = 129,261,160.80
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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.