Finding the Fourth Proportional to 79,432,031.09, 109,625,078.76 and 48,087,351.20
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Solution
The fourth proportional to 79,432,031.09, 109,625,078.76 and 48,087,351.20 is: 66,365,918.01
Step by Step Solution
- Step 1: Write the proportion equation
79,432,031.09 : 109,625,078.76 = 48,087,351.20 : x - Step 2: Convert to fraction form
79,432,031.09/109,625,078.76 = 48,087,351.20/x - Step 3: Cross multiply
79,432,031.09x = 109,625,078.76 × 48,087,351.20 - Step 4: Simplify right side
79,432,031.09x = 5,271,579,662,659,781 - Step 5: Solve for x
x = 5,271,579,662,659,781/79,432,031.09 - Step 6: Final answer
x = 66,365,918.01
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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.