Finding the Fourth Proportional to 69,514,331.60, 104,271,497.40 and 53,421,510.80
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Solution
The fourth proportional to 69,514,331.60, 104,271,497.40 and 53,421,510.80 is: 80,132,266.20
Step by Step Solution
- Step 1: Write the proportion equation
69,514,331.60 : 104,271,497.40 = 53,421,510.80 : x - Step 2: Convert to fraction form
69,514,331.60/104,271,497.40 = 53,421,510.80/x - Step 3: Cross multiply
69,514,331.60x = 104,271,497.40 × 53,421,510.80 - Step 4: Simplify right side
69,514,331.60x = 5,570,340,924,486,272 - Step 5: Solve for x
x = 5,570,340,924,486,272/69,514,331.60 - Step 6: Final answer
x = 80,132,266.20
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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.