Finding the Fourth Proportional to 13,187,818.70, 19,781,728.05 and 4,089,898.70
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Solution
The fourth proportional to 13,187,818.70, 19,781,728.05 and 4,089,898.70 is: 6,134,848.05
Step by Step Solution
- Step 1: Write the proportion equation
13,187,818.70 : 19,781,728.05 = 4,089,898.70 : x - Step 2: Convert to fraction form
13,187,818.70/19,781,728.05 = 4,089,898.70/x - Step 3: Cross multiply
13,187,818.70x = 19,781,728.05 × 4,089,898.70 - Step 4: Simplify right side
13,187,818.70x = 80,905,263,835,448.55 - Step 5: Solve for x
x = 80,905,263,835,448.55/13,187,818.70 - Step 6: Final answer
x = 6,134,848.05
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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.