Finding the Fourth Proportional to 13,943,901.39, 19,243,051.21 and 7,749,209.19
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Solution
The fourth proportional to 13,943,901.39, 19,243,051.21 and 7,749,209.19 is: 10,694,168.38
Step by Step Solution
- Step 1: Write the proportion equation
13,943,901.39 : 19,243,051.21 = 7,749,209.19 : x - Step 2: Convert to fraction form
13,943,901.39/19,243,051.21 = 7,749,209.19/x - Step 3: Cross multiply
13,943,901.39x = 19,243,051.21 × 7,749,209.19 - Step 4: Simplify right side
13,943,901.39x = 149,118,429,280,172.62 - Step 5: Solve for x
x = 149,118,429,280,172.62/13,943,901.39 - Step 6: Final answer
x = 10,694,168.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.