Finding the Fourth Proportional to 310,031,272.20, 465,046,908.30 and 206,719,141.80
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Solution
The fourth proportional to 310,031,272.20, 465,046,908.30 and 206,719,141.80 is: 310,078,712.70
Step by Step Solution
- Step 1: Write the proportion equation
310,031,272.20 : 465,046,908.30 = 206,719,141.80 : x - Step 2: Convert to fraction form
310,031,272.20/465,046,908.30 = 206,719,141.80/x - Step 3: Cross multiply
310,031,272.20x = 465,046,908.30 × 206,719,141.80 - Step 4: Simplify right side
310,031,272.20x = 96,134,097,780,519,312 - Step 5: Solve for x
x = 96,134,097,780,519,312/310,031,272.20 - Step 6: Final answer
x = 310,078,712.70
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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.