Finding the Fourth Proportional to 13,124,998.80, 19,656,005.40 and 6,385,539.60
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Solution
The fourth proportional to 13,124,998.80, 19,656,005.40 and 6,385,539.60 is: 9,562,987.61
Step by Step Solution
- Step 1: Write the proportion equation
13,124,998.80 : 19,656,005.40 = 6,385,539.60 : x - Step 2: Convert to fraction form
13,124,998.80/19,656,005.40 = 6,385,539.60/x - Step 3: Cross multiply
13,124,998.80x = 19,656,005.40 × 6,385,539.60 - Step 4: Simplify right side
13,124,998.80x = 125,514,200,859,513.83 - Step 5: Solve for x
x = 125,514,200,859,513.83/13,124,998.80 - Step 6: Final answer
x = 9,562,987.61
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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.