Finding the Fourth Proportional to 10,487,029.60, 15,703,972.35 and 8,361,265.60
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Solution
The fourth proportional to 10,487,029.60, 15,703,972.35 and 8,361,265.60 is: 12,520,712.61
Step by Step Solution
- Step 1: Write the proportion equation
10,487,029.60 : 15,703,972.35 = 8,361,265.60 : x - Step 2: Convert to fraction form
10,487,029.60/15,703,972.35 = 8,361,265.60/x - Step 3: Cross multiply
10,487,029.60x = 15,703,972.35 × 8,361,265.60 - Step 4: Simplify right side
10,487,029.60x = 131,305,083,793,406.16 - Step 5: Solve for x
x = 131,305,083,793,406.16/10,487,029.60 - Step 6: Final answer
x = 12,520,712.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.