Finding the Fourth Proportional to 13,127,920.96, 19,681,682.80 and 8,507,145.84
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Solution
The fourth proportional to 13,127,920.96, 19,681,682.80 and 8,507,145.84 is: 12,754,109.84
Step by Step Solution
- Step 1: Write the proportion equation
13,127,920.96 : 19,681,682.80 = 8,507,145.84 : x - Step 2: Convert to fraction form
13,127,920.96/19,681,682.80 = 8,507,145.84/x - Step 3: Cross multiply
13,127,920.96x = 19,681,682.80 × 8,507,145.84 - Step 4: Simplify right side
13,127,920.96x = 167,434,945,956,219.56 - Step 5: Solve for x
x = 167,434,945,956,219.56/13,127,920.96 - Step 6: Final answer
x = 12,754,109.84
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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.