Finding the Fourth Proportional to 2,085,996,071.80, 3,129,414,011.70 and 612,133,031.80
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Solution
The fourth proportional to 2,085,996,071.80, 3,129,414,011.70 and 612,133,031.80 is: 918,322,768.02
Step by Step Solution
- Step 1: Write the proportion equation
2,085,996,071.80 : 3,129,414,011.70 = 612,133,031.80 : x - Step 2: Convert to fraction form
2,085,996,071.80/3,129,414,011.70 = 612,133,031.80/x - Step 3: Cross multiply
2,085,996,071.80x = 3,129,414,011.70 × 612,133,031.80 - Step 4: Simplify right side
2,085,996,071.80x = 1,915,617,686,739,321,344 - Step 5: Solve for x
x = 1,915,617,686,739,321,344/2,085,996,071.80 - Step 6: Final answer
x = 918,322,768.02
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1.5x scale
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.