Finding the Fourth Proportional to 2,889,449,705.55, 3,987,197,055.90 and 1,601,995,927.68
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Solution
The fourth proportional to 2,889,449,705.55, 3,987,197,055.90 and 1,601,995,927.68 is: 2,210,619,355.70
Step by Step Solution
- Step 1: Write the proportion equation
2,889,449,705.55 : 3,987,197,055.90 = 1,601,995,927.68 : x - Step 2: Convert to fraction form
2,889,449,705.55/3,987,197,055.90 = 1,601,995,927.68/x - Step 3: Cross multiply
2,889,449,705.55x = 3,987,197,055.90 × 1,601,995,927.68 - Step 4: Simplify right side
2,889,449,705.55x = 6,387,473,446,409,485,312 - Step 5: Solve for x
x = 6,387,473,446,409,485,312/2,889,449,705.55 - Step 6: Final answer
x = 2,210,619,355.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.