Finding the Fourth Proportional to 13,660,355.66, 18,851,284.58 and 7,548,730.70
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Solution
The fourth proportional to 13,660,355.66, 18,851,284.58 and 7,548,730.70 is: 10,417,244.92
Step by Step Solution
- Step 1: Write the proportion equation
13,660,355.66 : 18,851,284.58 = 7,548,730.70 : x - Step 2: Convert to fraction form
13,660,355.66/18,851,284.58 = 7,548,730.70/x - Step 3: Cross multiply
13,660,355.66x = 18,851,284.58 × 7,548,730.70 - Step 4: Simplify right side
13,660,355.66x = 142,303,270,643,482.59 - Step 5: Solve for x
x = 142,303,270,643,482.59/13,660,355.66 - Step 6: Final answer
x = 10,417,244.92
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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.