Finding the Fourth Proportional to 9,712,860.08, 13,403,789.69 and 5,361,982.07
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Solution
The fourth proportional to 9,712,860.08, 13,403,789.69 and 5,361,982.07 is: 7,399,558.87
Step by Step Solution
- Step 1: Write the proportion equation
9,712,860.08 : 13,403,789.69 = 5,361,982.07 : x - Step 2: Convert to fraction form
9,712,860.08/13,403,789.69 = 5,361,982.07/x - Step 3: Cross multiply
9,712,860.08x = 13,403,789.69 × 5,361,982.07 - Step 4: Simplify right side
9,712,860.08x = 71,870,879,894,002.02 - Step 5: Solve for x
x = 71,870,879,894,002.02/9,712,860.08 - Step 6: Final answer
x = 7,399,558.87
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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.