Finding the Fourth Proportional to 13,303,373.70, 19,960,309.35 and 5,214,972.90
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Solution
The fourth proportional to 13,303,373.70, 19,960,309.35 and 5,214,972.90 is: 7,824,516.90
Step by Step Solution
- Step 1: Write the proportion equation
13,303,373.70 : 19,960,309.35 = 5,214,972.90 : x - Step 2: Convert to fraction form
13,303,373.70/19,960,309.35 = 5,214,972.90/x - Step 3: Cross multiply
13,303,373.70x = 19,960,309.35 × 5,214,972.90 - Step 4: Simplify right side
13,303,373.70x = 104,092,472,335,866.62 - Step 5: Solve for x
x = 104,092,472,335,866.62/13,303,373.70 - Step 6: Final answer
x = 7,824,516.90
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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.