Finding the Fourth Proportional to 1,703,926,020.80, 2,555,889,031.20 and 1,520,260,011.20
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Solution
The fourth proportional to 1,703,926,020.80, 2,555,889,031.20 and 1,520,260,011.20 is: 2,280,390,016.80
Step by Step Solution
- Step 1: Write the proportion equation
1,703,926,020.80 : 2,555,889,031.20 = 1,520,260,011.20 : x - Step 2: Convert to fraction form
1,703,926,020.80/2,555,889,031.20 = 1,520,260,011.20/x - Step 3: Cross multiply
1,703,926,020.80x = 2,555,889,031.20 × 1,520,260,011.20 - Step 4: Simplify right side
1,703,926,020.80x = 3,885,615,887,198,068,736 - Step 5: Solve for x
x = 3,885,615,887,198,068,736/1,703,926,020.80 - Step 6: Final answer
x = 2,280,390,016.80
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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.