Finding the Fourth Proportional to 79,918,207.21, 110,286,720.48 and 43,248,778.21
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Solution
The fourth proportional to 79,918,207.21, 110,286,720.48 and 43,248,778.21 is: 59,683,094.50
Step by Step Solution
- Step 1: Write the proportion equation
79,918,207.21 : 110,286,720.48 = 43,248,778.21 : x - Step 2: Convert to fraction form
79,918,207.21/110,286,720.48 = 43,248,778.21/x - Step 3: Cross multiply
79,918,207.21x = 110,286,720.48 × 43,248,778.21 - Step 4: Simplify right side
79,918,207.21x = 4,769,765,913,547,785 - Step 5: Solve for x
x = 4,769,765,913,547,785/79,918,207.21 - Step 6: Final answer
x = 59,683,094.50
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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.