Finding the Fourth Proportional to 6,619,908.21, 9,929,847.71 and 1,762,215.81
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Solution
The fourth proportional to 6,619,908.21, 9,929,847.71 and 1,762,215.81 is: 2,643,319.83
Step by Step Solution
- Step 1: Write the proportion equation
6,619,908.21 : 9,929,847.71 = 1,762,215.81 : x - Step 2: Convert to fraction form
6,619,908.21/9,929,847.71 = 1,762,215.81/x - Step 3: Cross multiply
6,619,908.21x = 9,929,847.71 × 1,762,215.81 - Step 4: Simplify right side
6,619,908.21x = 17,498,534,616,643.22 - Step 5: Solve for x
x = 17,498,534,616,643.22/6,619,908.21 - Step 6: Final answer
x = 2,643,319.83
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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.