Finding the Fourth Proportional to 15,565,835.20, 23,348,752.80 and 8,391,381.70
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Solution
The fourth proportional to 15,565,835.20, 23,348,752.80 and 8,391,381.70 is: 12,587,072.55
Step by Step Solution
- Step 1: Write the proportion equation
15,565,835.20 : 23,348,752.80 = 8,391,381.70 : x - Step 2: Convert to fraction form
15,565,835.20/23,348,752.80 = 8,391,381.70/x - Step 3: Cross multiply
15,565,835.20x = 23,348,752.80 × 8,391,381.70 - Step 4: Simplify right side
15,565,835.20x = 195,928,296,963,743.75 - Step 5: Solve for x
x = 195,928,296,963,743.75/15,565,835.20 - Step 6: Final answer
x = 12,587,072.55
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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.