Finding the Fourth Proportional to 9,119,756.71, 13,712,448.17 and 8,408,796.09
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Solution
The fourth proportional to 9,119,756.71, 13,712,448.17 and 8,408,796.09 is: 12,643,449.19
Step by Step Solution
- Step 1: Write the proportion equation
9,119,756.71 : 13,712,448.17 = 8,408,796.09 : x - Step 2: Convert to fraction form
9,119,756.71/13,712,448.17 = 8,408,796.09/x - Step 3: Cross multiply
9,119,756.71x = 13,712,448.17 × 8,408,796.09 - Step 4: Simplify right side
9,119,756.71x = 115,305,180,556,223.66 - Step 5: Solve for x
x = 115,305,180,556,223.66/9,119,756.71 - Step 6: Final answer
x = 12,643,449.19
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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.