Finding the Fourth Proportional to 43,115,107.20, 64,681,646.40 and 14,370,172.80
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Solution
The fourth proportional to 43,115,107.20, 64,681,646.40 and 14,370,172.80 is: 21,558,254.08
Step by Step Solution
- Step 1: Write the proportion equation
43,115,107.20 : 64,681,646.40 = 14,370,172.80 : x - Step 2: Convert to fraction form
43,115,107.20/64,681,646.40 = 14,370,172.80/x - Step 3: Cross multiply
43,115,107.20x = 64,681,646.40 × 14,370,172.80 - Step 4: Simplify right side
43,115,107.20x = 929,486,435,756,498 - Step 5: Solve for x
x = 929,486,435,756,498/43,115,107.20 - Step 6: Final answer
x = 21,558,254.08
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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.