Finding the Fourth Proportional to 13,246,853.84, 18,280,873.98 and 7,286,496.18
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Solution
The fourth proportional to 13,246,853.84, 18,280,873.98 and 7,286,496.18 is: 10,055,483.37
Step by Step Solution
- Step 1: Write the proportion equation
13,246,853.84 : 18,280,873.98 = 7,286,496.18 : x - Step 2: Convert to fraction form
13,246,853.84/18,280,873.98 = 7,286,496.18/x - Step 3: Cross multiply
13,246,853.84x = 18,280,873.98 × 7,286,496.18 - Step 4: Simplify right side
13,246,853.84x = 133,203,518,422,331.39 - Step 5: Solve for x
x = 133,203,518,422,331.39/13,246,853.84 - Step 6: Final answer
x = 10,055,483.37
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1.5x scale
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.