Finding the Fourth Proportional to 15,432,560.30, 21,294,975.77 and 8,461,403.40
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Solution
The fourth proportional to 15,432,560.30, 21,294,975.77 and 8,461,403.40 is: 11,675,663.46
Step by Step Solution
- Step 1: Write the proportion equation
15,432,560.30 : 21,294,975.77 = 8,461,403.40 : x - Step 2: Convert to fraction form
15,432,560.30/21,294,975.77 = 8,461,403.40/x - Step 3: Cross multiply
15,432,560.30x = 21,294,975.77 × 8,461,403.40 - Step 4: Simplify right side
15,432,560.30x = 180,185,380,340,888.62 - Step 5: Solve for x
x = 180,185,380,340,888.62/15,432,560.30 - Step 6: Final answer
x = 11,675,663.46
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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.