Finding the Fourth Proportional to 5,285,643,857.48, 7,911,220,298.88 and 3,886,257,090.44
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Solution
The fourth proportional to 5,285,643,857.48, 7,911,220,298.88 and 3,886,257,090.44 is: 5,816,705,932.06
Step by Step Solution
- Step 1: Write the proportion equation
5,285,643,857.48 : 7,911,220,298.88 = 3,886,257,090.44 : x - Step 2: Convert to fraction form
5,285,643,857.48/7,911,220,298.88 = 3,886,257,090.44/x - Step 3: Cross multiply
5,285,643,857.48x = 7,911,220,298.88 × 3,886,257,090.44 - Step 4: Simplify right side
5,285,643,857.48x = 30,745,035,980,555,255,808 - Step 5: Solve for x
x = 30,745,035,980,555,255,808/5,285,643,857.48 - Step 6: Final answer
x = 5,816,705,932.06
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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.