Finding the Fourth Proportional to 13,303,465.70, 19,960,447.35 and 5,215,064.90
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Solution
The fourth proportional to 13,303,465.70, 19,960,447.35 and 5,215,064.90 is: 7,824,654.92
Step by Step Solution
- Step 1: Write the proportion equation
13,303,465.70 : 19,960,447.35 = 5,215,064.90 : x - Step 2: Convert to fraction form
13,303,465.70/19,960,447.35 = 5,215,064.90/x - Step 3: Cross multiply
13,303,465.70x = 19,960,447.35 × 5,215,064.90 - Step 4: Simplify right side
13,303,465.70x = 104,095,028,363,283.03 - Step 5: Solve for x
x = 104,095,028,363,283.03/13,303,465.70 - Step 6: Final answer
x = 7,824,654.92
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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.